Answer:
Sara hikes faster than Jorge.
Step-by-step explanation:
In five hrs Sara had hiked 23 km while Jorge had only hiked 20 km in 5 hrs.
Sara's speed = 5km/hour
Jorge's speed = 4km/hour
Sara hikes faster.
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
The table shows the relationship between the number of hours, h, Jorge has been hiking and the total distance, d, he has traveled in kilometers.
The graph shows the distance Sara hiked over the same period of time.
From the table, we see that,
Rate of change = (8 -4)/(2-1)
Rate of change = 4/1 = Distance/Time
Speed = Distance/Time
Rate of change = speed
In one hour, the distance traveled is 4 km.
From the graph, we see that,
We have the following coordinates,
= (1, 5), (2, 10), (3, 15)
Rate of change = (10 - 5)/(2 - 1) = 5/1 = Distance/Time
Speed = 5/1
In one hour, the distance traveled is 5 km.
Thus,
Sara's speed = 5km/hour
Jorge's speed = 4km/hour
Sara hikes faster.
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PLEASE ASAP HURRY!!!
Answer:
Strawberry= 3
Watermelon=3
Coconut=9
Orange=5
Step-by-step explanation:
Quite easy, you can use substitution
First look at the simplest row that can be solved by itself
row 2:
2strawberries +4 = 10
2 strawberries= 6
1 strawberry = 3
Row 3: Strawberry(3)+ orange=8
1 orange= 5
Rpw 4: 14= 1coconut +orange(5)
1 coconut= 9
Row 1: Coconut(9)+ watermelon+ coconut(9)= 21
2 coconut(18)= 21
1 watermelon = 3
Aiden asked a group of students to choose their favorite type of music from the choices of rock, hip-hop, and country. The results of the survey are shown in the graph.
Based on the graph, how many students in a class of 360 students would be expected to choose hip-hop or rock as their favorite type of music?
Hiphop has 40
Rock has 20
Answer:
240
Step-by-step explanation:
20% of the students like rock and 40% like hip-hop. That means that 60% of the 360 students would be expected to choose one of the two. Because you don't know the other 10%, you would assume that they would have the same ratio of students who like the country to those who like rock and hip-hop. 60 is 2/3 of 90, so you would expect 2/3 of the students to like hip-hop or rock. 2/3 of 360 is 240.
(this is not my handlely work; I not very good at explaining)
Which rate is equivalent to the unit rate of 17 miles per gallon?
three gallons over fifty-one miles
fifty-one miles over three gallons
thirty-four miles over four gallons
four gallons over thirty-four miles
Please answer fast
Answer:
three gallons over fifty-one miles
Step-by-step explanation:
will mark brainliest ONLY if you explain how it is the correct ;3
the largest number of four digits exactly divisble by 88 is:
a)9768
b)8888
c)9988
d)9944
Answer: D
Divide each number by 88
9768 ÷ 88 = 111
8888 ÷ 88 = 101
9988 ÷ 88 = 113.5
9944 ÷ 88 = 113
Since D is the largest whole number the answer is D
Adam’s car traveled 465.3 miles on 16.5 gallons of gas. Which equation can be used to determine the average number of miles that the car traveled on each gallon of gas?
16.5x = 465.3
StartFraction x over 16.5 EndFraction = 465.3
465.3 x = 16.5
StartFraction x over 265.3 EndFraction = 16.5
Answer:
it A
Step-by-step explanation:
the ratio of the number of oranges to apples to bananas is 8:5:2. if there are 120 fruits in total, how many bananas are there
Answer:
Step-by-step explanation:
To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.
Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.
The sum of the parts in the ratio is 8x + 5x + 2x = 15x.
We know that the total number of fruits is 120. Therefore, we can set up the following equation:
15x = 120
To solve for x, we divide both sides of the equation by 15:
x = 120 / 15
x = 8
Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:
Number of bananas = 2x = 2 * 8 = 16
So, there are 16 bananas in total.
We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.
a and are different numbers that are selected from the first 25 whole numbers: 1 through 25.If a is greater than b, what is the smallest value the expression could have?
Answer:
The smallest value the expression could have is 1.
Step-by-step explanation:
If a and b are different numbers selected from the first 25 whole numbers (1 through 25), and a is greater than b, the smallest value the expression could have is when b is the smallest possible value and a is the next smallest value.
The smallest possible value for b is 1, and a must be greater than b. Therefore, the smallest possible value for a is 2.
So, the smallest value the expression could have is 2 - 1 = 1.
This is the graph of f(x) = x+A/x+B. The grid lines in the graph are one unit apart. What is the value of A/B
The value of A/B is given as follows:
A/B = -2.
What are the asymptotes of a function f(x)?The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.The horizontal asymptote is the value of f(x) as x goes to infinity, as long as this value is different of infinity.From the graph, the function has a vertical asymptote at x = 1, hence the value of B is given as follows:
B = -1 -> as x + B = 0 -> x = -B = -1.
When x = 0, y = -2, hence the value of A is obtained as follows:
A/-1 = -2
A = 2.
Then the division is given as follows:
A/B = 2/-1 = -2.
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Which TWO expressions yield a product LESS THAN 3/5? THE SLASHES REPRESENT FRACTIONS
A. 2/3 x 3/5
B. 4/1 x 3/5
C. 2/2 x 3/5
D. 1/4 x 3/5
E. 7/4 x 3/5
Kay buys 12 pounds of apples. Each
pound costs $3. If she gives the cashier
two $20 bills, how much change should
she receive?
Can anyone help me answer these questions, PLSSSSS?
so so I have attached a picture with my
HELP PLS
Part A: Bo earned $10 walking his neighbors' dogs on Tuesday. He earned some extra money on Thursday by doing a different chore for a neighbor. Write an expression with a variable that shows the total amount of money Bo earned Tuesday and Thursday.
Part B: Bo was able to walk 2 more than twice as many dogs as his friend Silas. Write an algebraic expression to represent the number of dogs Bo walked compared with Silas
Answer:
e
Step-by-step explanation:
Part A: 10 + m = t
Extra money earned on Thursday = m
Total money earned = t
Part B: 2x + 2
we have no idea how many dogs silas walked
x = amount of dogs silas walked
uh this one wasn't that good
either way, hope this helped :)
Which of the following linear functions contain the branches for the function f(x)=a|x-h|+k? Select all that apply (see picture).
Answer:
h i suppose
Step-by-step explanation:
2, 3, 5, 9, 17, 22, 31, 39
Regina kept track of the points she scored during her team’s first eight basketball games. What is Regina’s mean score?
Responses
A 3939
B 1616
C 3737
D 1313
E 17
Answer:
Mean = 16
Step-by-step explanation:
MEAN can be find bg the sum of all score divided by the amount of the score.
Mean = total amount / number of amount
Total amount = 2 + 3 + 5 + 9 + 17+ 22 + 31 + 39
= 128
number of amount = 2, 3, 5, 9, 17, 22, 31, 39
= 8
Then we can calculate mean as
Mean = 128/8
Mean = 16
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
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Erin made a line plot of the amount of time she practiced shooting free throws each day in the past 10 days.
Line plot named as ALTDCTime Spent Practicing (hours)ALTDC shows a number line from one-fourth to two and one-fourth. The number line is divided into 8 equal parts. 1 dot on one-half, 2 dots on three-fourths, 3 dots on 1, 2 dots on one and one-fourths, 1 dot on one and half and 1 dot on 2 is given.
Part A
What is the difference between the greatest and least times Erin practiced shooting free throws?
A. 1 hour
B. 114hours
C. 112hours
D. 2 hours
Part B
What is the most common amount of time Erin practiced shooting free throws?
Enter your answer in the box.
hour(s)
Part C
Drag the numbers to write an equation for the total amount of time t Erin practiced shooting free throws in the 10 days.
Numbers may be used once, more than once, or not at all.
Part D
What is the total amount of time Erin practiced shooting free throws in the 10 days?
A. 11 hours B. 1112 hours C. 1134 hours D. 12 hours
Answer:
Data: for the 10 days of practice, we have:
0.5 hours 1 time.
0.75 hours 2 times
1 hour 3 times
1.25 hours 2 times
1.5 hours 1 time
2 hours 1 time.
A) the largest amount number of times that she practiced by the same amount of time is 3 (for the 1-hour practice)
The smallest is 1 ( for the 0.5h, 1.5h, and 2h practices)
the difference is 3 - 1 = 2.
B) the time that she practiced more times is 1 hour, she practiced that amount of time in 3 different days out of the 10 days.
C) the equation can be found by multiplying the number of hours by the number of times that she practiced that amount of time, and then adding all of them:
0.5h*1 + 0.75h*2 + 1h*3 + 1.25h*2 + 1.5h*1 + 2h*1
D) the solution for the previous equation is 11 hours. Here the correct option is A.
With her new trainer, Judy now bikes at an average speed of 24.1 MPH. That is 20.5% faster than she averaged with her old trainer. How fast did she bike, on average, before training with the her new trainer?
Answer: an average of 13.5 mph is very respectable
Step-by-step explanation:
The sum of two numbers is 45. The difference of the 2 numbers is 3. What is the product?
A:135
B:480
C:504
D:2,160
Answer:
x = 24, y = 21
Step-by-step explanation:
x + y = 45
x - y = 3
Add them together
2x = 48
x = 24
24 + y = 45
y = 21
Please help me out with this question....
Answer:
2(1/2-3/4)
Once you evaluate the expression, your answer should be -2.5.
What is the 75th percentile?
8, 11.5, 16.5, 30
The middle 50% values are between?
2 and 8, 8 and 16.5, 8 and 11.5, 11.6 and 16.5
Answer:
The 75th percentile is 16.5
The middle 50% values are between 8 and 16.5
Step-by-step explanation:
The end of the gray box represents the 75th percentile. We see the end of it hovers after 15, so 16.5 is the most reasonable answer.
The box represents the 25th percentile to the 75th percentile and hold the middle 50% the box starts on 8 and ends on 16.5.
Therefore, the middle 50% is between 8 and 16.5.
Think about the three terms below. Then write a sentence explaining what the terms have in common. A- archaeology B- artifact C- carbon dating
Answer:
they are all about archaeology
Step-by-step explanation:
archaeology is th name of the study, artifacts are what archaeologist study, and carbon dating is the way that archaeologist date the artifacts.
So far this year, Adam has played 30 games of chess and has only won 6 of them. What is the minimum number of additional games he must play, given that he is sure to lose at least one-third of them, so that for the year he will have won more games than he lost?
A) 24
B) 57
C) 87
D) It is not possible for Adam to do this.
The correct answer is B) 57, but not sure how?
Answer:
Step-by-step explanation:Yikes. Just so we’re all clear—this is not a real SAT question.
So far, Adam’s record is 6 wins/30 games. If he plays x more games, his record will be:
image
You find the minimum x such that the fraction is greater than ½, which would mean he won more than ½ of his games.
Let’s do some math!
image
So if he plays 54 more games, and wins 2/3 of them, he’ll have the same number of wins as losses. Check on that to make sure: He’ll have played 30 + 54 = 84 games, and won 6 + (2/3)54 = 42 of them. Yep, that works.
Now here is where it gets tricky (and why this question is not SAT-caliber). Remember that he’s losing 1/3 of his games. If his 52nd, 53rd, and 54th additional games were win, win, loss, then he would have had, very briefly, a winning record after his 53rd additional game.
His 55th additional game is another chance at a winning record. If he loses that game, then he’ll win the next two, and have a winning record for sure by the 57th additional game. From there, if he continues winning 2/3 of his games, he’ll have a winning record forever.
Ms. Ramos uses three and three-fourths tubes of blue paint and two and five-sixths tubes of red paint. How many tubes of paint does she use in all?
five and eight twenty-fourths tubes
five and seven-twelfths tubes
five and eight-tenths tubes
six and seven-twelfths tubes
Answer:
D. six and seven-twelfths tubes. you can find online fraction calculators
Step-by-step explanation:
What is the equation of this trend line?
Enter your answers by filling in the boxes.
Answer:
\(\sf N = \boxed{-2}\;M + \boxed{110}\)
Step-by-step explanation:
A trend line, also known as a line of best fit or regression line, is a straight or curved line that represents the general direction or pattern of a set of data points in a scatter plot or graph.
Trendlines are commonly used to identify patterns, make predictions, and understand the overall behavior of a dataset, and provide a visual representation of the underlying trend in the data.
The independent variable of a scatter plot is always drawn along the horizontal axis. The dependent variable of a scatter plot is always drawn along the vertical axis.
The trend line in the given scatter plot is a straight line with a negative slope. It shows the relationship between the variables M and N.
The trend line crosses the y-axis at (0, 110) and crosses the x-axis at (55, 0).
To find the slope of the trend line, substitute the two points on the line into the slope formula:
\(\textsf{Slope $(m)$}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{0-110}{55-0}=\dfrac{-100}{55}=-2\)
Substitute the found slope, m = -2, and the y-intercept, b = 110, into the slope-intercept formula, y = mx + b:
\(y=-2x+110\)
As variable M is the independent variable, substitute x = M.
As variable N is the dependent variable, substitute y = N.
Therefore, the equation of the given trend line is:
\(\boxed{\sf N=-2M+110}\)
find the area of this figrue
Answer:
25 mi
Step-by-step explanation:
9x2 plus 1x5 plus 1x2 equals
18+5+2=25
Find the value of x. The diagram is not to scale.
Consider Z the third angle in the image;
105 + z = 180
z = 75
72 + x + z = 180
72 + 75 + x = 180
x = 33
Alternative D)
another math question
Answer: .50 cents
Step-by-step explanation:
We can model the function by subtracting one number over another. \(9.70-9.20=.50\)
This gives the additional charge per minute.
the world’s longest river is the Nile in Africa, with a length of 6825km. this is about 1 5/8 times as long as the Mackenzie river, which is Canada’s longest river. how long is the Mackenzie river? the Mackenzie is abt 2 1/10 times as long as the Columbia river. how long is the Columbia?
Answer:
(1,080 mi) long
Step-by-step explanation:
The Mackenzie River is a river in the Canadian boreal forest. It is the longest river system in ... Basin size, 1,805,200 km2 (697,000 sq mi) ... The river's main stem is 1,738 kilometres (1,080 mi) long, flowing north-northwest from Great ... of the Mackenzie River is Thutade Lake, in the Northern Interior of British Columbia.
PLEASE HELP ME NOW!!!!!!!!!!
What is slope? Please help!!!!!!!!!!!!!!!!!!!!!
Answer:
slope is the rise and run of a line. it tells you how steep a line is and if it is rising or falling
Answer:
Slope is the steepness of the light as you move from left to right
Step-by-step explanation:
The equation to find slope is m=rise/run= y2-y1/x2-x1
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