Answer:
its A, start at -2 then go the the left to -7
Step-by-step explanation:
2 0 3 find the product. esamaite to check for reasonable
x 2 1
-----------------------
+ -- -- --
-- -- -- --
------------------------------
Answer:
Step-by-step explanation:
The table below models the cost, y, of using a high-efficiency washing machine and a standard washing machine over x number of years.
Which equation represents the cost of the high-efficiency washing machine over a given number of years?
Which equation represents the cost of the standard washing machine over a given number of years?
After how many years of use would the washing machines cost the same amount?
Which washing machine would be the more practical purchase if kept for 9 years?
heres ur answer:
i) y = 25x + 500
ii) y = 30x + 400
iii) the washing machines would cost the same amount after 20 years of use
iv) standard machine
Answer:1: y = 25x + 500
2: y = 30x + 400
3: 20
4: standard machine
Step-by-step explanation: on edge 2021
PEDMAS?
Example 1:
3+8(4-2)-7
Parentheses First = 3+8(2)-7
Exponents-none
Multiply/Divide 3+16-7
Add/Subtract 19-7 = 12
Example 2:
32-(9-5)+7x3-8÷2
Parentheses 32-(4)+7x3-8÷2
Exponents 6-4+7x3-8÷2
Multiply/Divide 6-4+21-4
Add/Subtract 2+17=19
Review
Directions: Compute the answers using PEMDAS.
1) 7 x 5 + 3=
2) 8 - (6 + 2)=
3) 10 - 6 + 5=
4) (21 3) x 2=
5) (12 6) + 6=
6) 3 + 10 5=
7) 8 + 4 - 2=
8) 7 + 5 - 5=
9) 16 8 - 1=
10) (20 - 17) - 3=
11) 8 + 2 - 7=
12) 18 (4 + 2)=
13) 8 - 6 + 7=
14) 5 - (18 6)=
15) 2 + 13 - 4=
16) (7 - 4) + 3=
17) 9 - 7 + 4=
18) 2 x 6 3=
19) 15 5 + 4=
20) 8 + 6 - 4=
Answer:
1. 38
2. 0
3. -1
4. 14
5. 8
6. 5
7. 10
8. 7
9. 1
10. 0
11. 3
12. 2
13. 5
14. 3
15. 11
16. 6
17. 2
18. 4
19. 7
20. 10
Step-by-step explanation:
a committee consisting of 4 faculty members and 5 students is to be formed. every committee position has the same duties and voting rights. there are 7 faculty members and 13 students eligible to serve on the committee. in how many ways can the committee be formed?
5/8 + 11/12
Someone help me please and thank you.
Also please show work.
Answer:
1 13/24
Step-by-step explanation:
First we need to find the LCD (lowest common Denominator) which will be 24. When we multiply 8 x 3 = 24 we will also multiply 5 by 3 which equals 15. So 5/8 = 15/24. Then we multiply 12 x 2 = 24, and again we also multiply the numerator by the same number which is 11 x 2 = 22. So 11/12 = 22/24.
Now that we have the LCD then we can add up the two. So 15/24 + 22/24 = 37/24. Now we need to simplify that to 1 13/24. Thank you.
Find the perimeter of this shape.
Answer:
draw a line that makes a triangle and rectangle.
hypotenuse= 30
3k-4k-5k triangle
18-24-30
so the short part of triangle is 18 cm
10+10+18+24+30 equals 92
sorry for language I am not familiar with English
the perimeter of this shape is
24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm
Find the value of X
Plz help me it’s emergency
Answer:
x = - 2
Step-by-step explanation:
Using the rules of exponents
\(a^{m}\) × \(a^{n}\) = \(a^{(m+n)}\)
\(\frac{a^{m} }{a^{n} }\) = \(a^{(m-n)}\)
Evaluating the numerator
9³ × 9 = \(9^{(3+1)}\) = \(9^{4}\) , thus
\(\frac{9^{4} }{9^{6} }\)
= \(9^{(4-6)}\) = \(9^{-2}\)
and \(9^{-2}\) = \(9^{x}\)
Since bases on both sides are 9, then equate exponents
x = - 2
-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)
Answer:
Option #4
Step-by-step explanation:
Expand option #4
=-3(1-2x)
=-3 -2x*-3
=-3+6x which is what your original equation was.
What is " 10 > 7 + x =?
(Please show work)
Answer:
x<3
Step-by-step explanation:
10>7+x
subtract 7 on both sides
3>x
Answer:
x<3
Step-by-step explanation:
What are the coordinates of the image of L for a dilation with center (0,0) and scale factor 1/4?
Answer:
\(K' = (\frac{1}{4} ,0)\)
\(L' = (\frac{1}{4} ,1)\)
\(M' = (\frac{5}{4} ,1)\)
\(N' = (\frac{5}{4} ,0)\)
Step-by-step explanation:
Given
K(1,0)
L(1,4)
M(5,4)
N(5,0)
Scale Factor = 1/4
Dilation with center (0,0)
Required
New coordinates of the quadrilateral
To get the new coordinates, we simply multiply the scale factor with each coordinate;
This is done as follows;
\(If\ K =(1,0),\ then;\)
\(K' = \frac{1}{4} * (1,0)\)
\(K' = (\frac{1}{4} * 1,\frac{1}{4}*0)\)
\(K' = (\frac{1}{4} ,0)\)
\(If\ L =(1,4),\ then\)
\(L' = \frac{1}{4} * (1,4)\)
\(L' = (\frac{1}{4} * 1,\frac{1}{4}*4)\)
\(L' = (\frac{1}{4} ,1)\)
\(If\ M =(5,4),\ then\)
\(M' = \frac{1}{4} * (5,4)\)
\(M' = (\frac{1}{4} * 5,\frac{1}{4}*4)\)
\(M' = (\frac{5}{4} ,1)\)
\(If\ N =(5,0),\ then\)
\(N' = \frac{1}{4} * (5,0)\)
\(N' = (\frac{1}{4} * 5,\frac{1}{4}*0)\)
\(N' = (\frac{5}{4} ,0)\)
Hence, the coordinates of the dilated figure are:
\(K' = (\frac{1}{4} ,0)\)
\(L' = (\frac{1}{4} ,1)\)
\(M' = (\frac{5}{4} ,1)\)
\(N' = (\frac{5}{4} ,0)\)
What is the solution to the equation?
9/10 x+4/5=28.3
choices:
x=133/5
x=275/9
x=97/3
explain why
Answer:
275/9
Step-by-step explanation:
9/10x + 4/5 = 28.3
leave out the decimal sign in 28.3 and then turn it into a fraction.
9/10x + 4/5 = 283/10
Multiply them by 10
9/10x • 10 = 9x
4/5 • 10 = 8
283/10 • 10 = 283
9x + 8 = 283
Separate the x from the non x
9x = 283 - 8
= 275
9x = 275
275/9 = x
The solution to the equation 9/10 x+4/5=28.3 is x = 275/9, Option B is correct.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is 9/10 x+4/5=28.3
Nine by ten times of x plus four by five equal to twenty eight point three
x is the variable in the equation
We have to solve for x
Subtract 4/5 from both sides
9/10x = 28.3 - 4/5
9/10x= 28.3 -0.8
9/10x=27.5
9x=27.5×10
9x=275
Divide both sides by 9
x=275/9
Hence, the solution to the equation 9/10 x+4/5=28.3 is x = 275/9, Option B is correct.
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ2
I need help, please quickly
Answer: The ratio is 18:3
Step-by-step explanation:
Answer: 6 to 1
Step-by-step explanation:
A ratio refers to a fraction. In this case the question asks how many players to coaches there are.
The word "to" means that is where the fraction bar goes.
Players/Coaches
There are 18 players and 3 coaches.
18/3
18 can be divided by 3, 6 times so the fraction can be simplified to
6/1 meaning there are 6 players for every coach.
last one 30 points answer C
(ANswer quickly please!) giving brainliest !!!
Last summer, a sports club had 380 members. This summer, due to some renovations, it has 30% more members. How many members are there now?
Answer:
494
Step-by-step explanation:
380 * 1.3 = 494
Solve for y.
−2y+7=−5
Responses
y = 6
y = 1
y = -1
y = -6
Answer: y = 6
Step-by-step explanation:
1. Subtract 7 from both sides to isolate -2y.
-2y = -12
2. Divide both sides by -2 to isolate the y.
y = 6
7th grade math I'll give brainliest
Answer:
Step-by-step explanation:
Rise over run is the slope, m
m=2/5
a) the slope is 2/5 = .4 which is below the boundary guideline. So no this is not with in carpenter's guidelines
b) the image below show a line with slope 2/5 but with intercept 3
c) the stairs can be draw on the line with rise 2 run 5 from the line. see image
d)equation is in image
2.
a) count the squares
horizontal distance =3
vertical distance =3
b) slope is vertical distance over horizontal distance so m= 3/3 =1
simplify the expression.
-2.7f + 0.8f - 16 - 4
Answer:
-1.9f-20
Step-by-step explanation:
-2.7f+0.8f-16-4
Collect similar items
-2.7f+0.8f=-1.9f
=-1.9f-16-4
Subtract the numbers
-16-4=-20
=-1.9f-20
Answer:
-1.9f-20
Step-by-step explanation:
Select the correct answer. Solve the quadratic equation given below. (12x-27)²=256
Answer:
x=43/12 11/12
Step-by-step explanation:
sorry if this answer is wrong
work out the circumference of this circle. Take pi as 3.142. diameter is 14cm
Answer:
The circumference is solved with this equation: c=
ANSWER 11-19 PLEASE AND EXPLAIN IN A SIMPLE IN DEPTH WAY HOW TO DO EACH PLEASE!!! I am new to Quadratics and DO NOT GET THEM SO PLEASE HELP!!!
Answer:
Number 11.: 8, 3, 2, 3, 2
Just substitute the value for x in every equation.
______________________________________
Number 12.: (x*x) +2x
one side is x, and the other is x+2
x * (x+2) is (x*x) +2x
_______________________________________
Number 13.: Im sorry but i don't know
________________________________________
Number 14.: (x*x)-6x+9
you multiply (3-x)*(3-x)
_________________________________________
I TRIED BUT ITS TOO CONFUSING FOR ME IM SORRYYYYYY :((((
HOPE YOU GET THE ANSWERS IM SORRY AGAIN!!!!!! :(((((((((((((((((((
Hey y’all, anyone could help me with this one bit? (Can’t use decimals.)
Answer:
7 14 21 35
3 6 9 15
not decimals for every 3 cat 7 dog
Step-by-step explanation:
so, you take 7+7 to get 14 then just repeat 14+7 = 21
3+3 6
and for 35 just take 35 divided by 7 * 3 to get 15
i learned this last year
hope this helps
Please help me with this.
Answer:
56
Step-by-step explanation:
80% of sixty is 48 so the 20% is 12.
Example:
12 is 40 percent of the next problem.
12/.4 = 3030*.6 = 1818 is now 30% of the next strip.
18/.3 = 6060*.7 = 4242 now is 75% of the last strip
42/.75 = 5656 is the Answer.
Translate the sentence into an equation.
Nine times the sum of a number and 6 equals 8.
Use the variable w for the unknown number.
Answer:
9 x w + 6 = 8
Step-by-step explanation:
The tape diagram below represents 100\%100%100, percent.
What percent is represented by the shaded area?
Answer:
Step-by-step explanation:
Well the answer is 40 cause you count by 20 so if you in 20 t o times then you would get 40 percent
Mackey invested some money in an account paying 6% interest for one year. She invested $1000 more than this amount in an account paying 8.5%. How much did she invest in total if the total interest earned in the year was $737.50?
Step-by-step explanation:
Let's assume the amount Mackey initially invested in the 6% account is x dollars.
According to the given information, Mackey invested $1000 more than x in the 8.5% account, which means she invested (x + $1000) dollars in that account.
The total interest earned from the 6% account would be 0.06x dollars, and the total interest earned from the 8.5% account would be 0.085(x + $1000) dollars.
The total interest earned in the year is given as $737.50, so we can set up the equation:
0.06x + 0.085(x + $1000) = $737.50
Simplifying the equation:
0.06x + 0.085x + 0.085($1000) = $737.50
Combining like terms:
0.145x + $85 = $737.50
Subtracting $85 from both sides:
0.145x = $737.50 - $85
0.145x = $652.50
Dividing both sides by 0.145:
x = $652.50 / 0.145
x ≈ $4500
Therefore, Mackey initially invested approximately $4500 in the 6% account, and she invested $1000 more, which means she invested a total of $5500.
$4500
$4500
$4500
$4500
a. How many non-degenerate scalene triangles with integer sides have a
perimeter of 27?
b. A square is inscribed in an equilateral triangle of side length 2 so that
two adjacent corners of the square lie on two sides of the triangle, and
the third side of the triangle contains one side of the square. The area of
the region inside the triangle and outside the square can be expressed as
a√b − c. What is a + b + c?
Answer:
Hello,
a)18
Step-by-step explanation:
\(p=27, int[p/2]=13\\\\\begin{array}{c|c|c|c|c}a&p-a&b&c\\---&---&---&---\\1&26&13&13\\2&25&12&13\\3&24&12&12\\4&23&10&13\\&&11&12\\5&22&9&13\\&&10&12\\&&11&11\\6&21&8&13\\&&9&12\\&&10&11\\7&20&7&13\\&&8&12\\&&9&11\\&&10&10\\8&19&8&11\\&&9&10\\9&18&9&9\\---&---&---&---\\\end{array}\)
number of triangle=18
b)
Side of the equilateral triangle =2
Height=√3 (using Pythagorean's theorem) (tr ACP)
Triangle ABJ has the same area as the triangle ABC
Uisng Thalès's theorem,
\(\dfrac{2-v}{2}=\dfrac{v}{\sqrt{3} } \\\\\\v=\dfrac{2\sqrt{3} }{2+\sqrt{3} } \\\\\\v=\dfrac{2\sqrt{3}*(2-\sqrt{3}) }{1} } \\\\v=4\sqrt{3}-6\\\\v^2=84-48\sqrt{3} \\Area =a\sqrt{b}-c= \sqrt{3} -(84-48\sqrt{3} )=49\sqrt{3} -84\approx{0,87049...}\\\\So:\\b=3\\a=49\\c=84\\\\a+b+c=3+49+84=136\\\)
Which expression can be used to find 32% of 130?
Answer:
130 times .32
Step-by-step explanation:
Does (2 ⋅ 3)2 have the same value as 22 ⋅ 32?
a. Yes, they both equal 18.
b. Yes, they both equal 36.
c. No, the first is 25 and the second is 13.
d. No, the first is 18 and the second is 36.
Answer: d
Step-by-step explanation:
There are currently 6,210 fish in a lake. If the number of fish in the lake increased by 15 percent during the last year and 20 percent during the year before that, how many more fish are in the lake currently than in the last two years ago?
I’m pretty sure the answer should be 1,710 if not i’m sorry
Answer:
1710 fish
Step-by-step explanation:
Let the number of fish in the lake last year be 'x'
The equation becomes-
x + 15x/100=6210 (This is because 15% of x is added in x to become
6210... hope you understand)
x + 15x/100 = 6210
115x/100 = 6210
23x/20 = 6210
x = 6210 * 20/23
x = 270 * 20
x = 5400
Therefore- The number of fish last year = 5400
Now, let the number of fish in the lake 2 years ago be 'y'
The equation becomes-
y + 20y/100 = 5400 (Same logic as last time)
y + 20y/100 = 5400
120y/100 = 5400
24y/20 = 5400
6y/5 = 5400
y = 5400 * 5/6
y = 900 * 5
y = 4500
Therefore- Fish in the lake two years ago = 4500 fish
Difference between current and two years ago = 6210-4500
= 1710 fish
Hope you understood the answer and I hope it helps you :)
Read this tell me the answer the last one please asap