7. The temperature in Springfield at 10:00 a.m. was 78°F. During the day, it dropped to 56°F. Write and solve an equation to
find the decrease in temperature.

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.

Answer:

The value of C in the table is 0. Total number of cake lovers = Total - (number of students who chose pie) = 138 - (36 + 42 + 60) = 138 - 138 = 0

Step-by-step explanation:

The value of C in the given table is 10. Therefore, option B is the correct answer.

The property of having suitable proportions in terms of size, number, degree, harshness, etc.: If a defensive action against an unfair attack results in the destruction that contravenes the proportionality criterion, it may even go far beyond a justifiable defense.

From the given table,

42/7 = 60/C (Using proportionality)

6=60/C

C=10

Therefore, option B is the correct answer.

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Answer:

Hey give me you intro.

I am new in brainly.

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

Answer:

It would be C and D

Step-by-step explanation:

A. Would be positive b/c a negative divided by a negative is a posititve

B. Would be -1/2

C. Is -2

D. Is -2.

Hope this helps!

Answer:

D and C

Step-by-step explanation:

A= -6

B= -0.5

C= -2

D= -2

Answer:

20%

Step-by-step explanation:

10 pieces

Austin ate 5/10 of the pizza (5 pieces)

5 pieces = 50%

Sharon ate 0.3 of the pizza (3 pieces)

3 pieces = 30%

50+30=80

100-80=20

20% left for Owen

Answer:

To find the greatest number of stickers Cassie can place on a page that is 11 inches long and 8 inches wide without them overlapping, we need to use the same approach as before.

Firstly, we need to calculate the maximum number of stickers that can fit along the length of the page, which is now 11 inches. Since each sticker is 3 inches long, we can fit 3 stickers along the length (11 ÷ 3 = 3 with a remainder of 2).

Next, we can calculate the maximum number of stickers that can fit along the width of the page, which is still 8 inches. Since each sticker is 2 inches wide, we can fit 4 stickers along the width (8 ÷ 2 = 4).

To ensure that the stickers do not overlap, we can only use the full row of 3 stickers from the previous calculation. Therefore, we can place 3 stickers along the length and 4 stickers along the width, giving us a maximum of 12 stickers that Cassie can place on the page without them overlapping.

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

First, find out how much stickers you can put on the long side:

12/3 = 4

Next, find out how much stickers you can put on the wide side:

8/2 = 4

Lastly, calculate them together:

4x4=16

So the answer is 16.

Answer:

3. 4

4. is correct

5. is correct

Step-by-step explanation:

3 is incorrect, you have to start with division first

3. 6-6/3

6-(6/3)

6-2

4

the answer for question 3 is 4

question 5 and question 4 are correct

Answer:

D

Step-by-step explanation:

4/3 * pi * r^3 is the formula.

Answer:

1/3

Step-by-step explanation:

just convert it?

3/10

Step-by-step explanation:

60% is the same as 60/100

90% is the same as 90/100

90-60=30

30/100

30/100 is divided by 10 on each side to simplify it to 3/10

Answer:

a) 7 hours ; b) 2.5 hours ; c) look at explanation

Step-by-step explanation:

a)

The mean of a data set is what we usually refer to as the average. To find the mean, you add up all of the values and divide by the number of values.

So, to find the mean, you need to add all of the values (the "value" is the the number hours each student watched)

11 + 7 + 9 + 3 + 3 + 8 + 10 + 5

= 56

You have 8 seventh-grade students, so your number of values is 8.

Dividing the sum of the values by the number of values would then be:

56 / 8

= 7

So, your mean is 7.

---------------------------------------

b)

(A deviation is how much a value differs from a certain value. If a person was supposed to be 5 feet tall, and they were 6 feet tall, they would deviate 1 foot from the value of 5. If the person was 4 feet tall, they would also have a deviation of 1 foot.)

The mean absolute deviation is complicated. You probably want to set up two columns (or at least this is how I was taught to do it), the first column being the value (represented by x in the mean absolute deviation formula), the second column being the difference between the mean of the data set and the value (the mean is represented as x with a line over it).

∑ is the sum of the values of the second column.

To find the mean (remember, mean = average) of the deviations, you are going to add all of the deviations together, and divide by your number of values.

I'll write out the second column (the difference from mean) below:

| x - \(\frac{}{x}\) |

4

0

2

4

4

1

3

2

if you add all of these values up, you will get 20; ∑ = 20

[  | | means absolute value--essentially the distance of the value from 0, so a negative number is written as a positive numbers; |-3| = 3 ; |3| = 3 ]

Now you will find the mean of your deviations. The sum of all deviations (∑) = 20. The number of deviations/the number of values is 8.

So, the equation of 20 / 8 will give us the absolute mean deviation.

20/8 = Mean Absolute Deviation

Mean Absolute Deviation = 2.5

Your Mean Absolute Deviation is 2.5 [hours] .

------------------------------------------------

c)

Now you are being asked to interpret what this 2.5 indicates. It means that each student has, on average, a difference of 2.5 hours of TV watched from the mean. The Mean Absolute Deviation gives us a sense of how spread out the values of a data set are. We know that a mean absolute deviation of 0 would indicate that all values of the set are exactly identical. A mean deviation of 100 would indicate that all of the values are drastically different. So, a mean deviation of 2.5 indicates that all of the values (each student's watch hours) are fairly similar.

Answer:

b and h . i hoped i helped you

Answer:

Step-by-step explanation:

Question 1 is  2.

Question 2. 3 3/5 + 3 3/5 = 6 6/5 which equals 7 1/5 if you add another one.

so the answer for question 2 is " 1.521.

Answer: I think it is 13 cm

Step-by-step explanation:

Answer: A

Step-by-step explanation:

12 x 12 = 144

39 x 39 = 1521

1521 - 144 = 1377

root 1377 = 37.1

Answer:

Perimeter is 12mm, height is \(2\sqrt3\)mm in simplest radical form, and 3.5mm in approximate decimal form.

Step-by-step explanation:

The perimeter is easy; since it's an equilateral triangle, all sides are the same length of 4, so you can just do 3*4 (3 sides, 4mm each) to get a perimeter of 12.

For the height, you can see that it forms two right triangles, each with a given base of 2 and a hypotenuse of 4. We can apply the pythagorean theorem (\(a^2+b^2=c^2\)) here to find the missing leg length of the smaller right triangles, which is equal to the big triangle's height.

I've enclosed an attachment for that.

Hope this helps!

13 1/4

4.5 into a fraction is 4 1/2. 4 1/2 + 8 3/4 is 13 1/4 feet.

Answer:

The answer is d. 13 1/4 feet PLEASE MARK BRAINLIEST

Step-by-step explanation:

the 8 feet plus the 4 feet from the 4.5 feet makes 12 feet plus the fractions so 8 inches is 1/4 feet and 8 inches plus 5 inches on the 4.5 feet makes 13 inches which is 13 1/4 feet so 8 3/4 feet + 4.5 feet = 13 1/4 feet

The coordinates of vertices N'G'M'​ are N'(-10, -15), M'(-15, -5) and G'(-5, -10).

From the given graph, N(-4, 6), M(-6, 2) and G(-2, 4).

Scale factor = \(2\frac{1}{2}\)

= 2.5

The reflection of point (x, y) across the x-axis is (x, -y).

Here, N(-4, 6)→(-4, -6)

M(-6, 2)→(-6, -2)

G(-2, 4)→(-2, -4)

Now, with scale factor 2.5, we get

(-4, -6)→2.5(-4, -6)→N'(-10, -15)

(-6, -2)→2.5(-6, -2)→M'(-15, -5)

(-2, -4)→2.5(-2, -4)→G'(-5, -10)

Therefore, the coordinates of vertices N'G'M'​ are N'(-10, -15), M'(-15, -5) and G'(-5, -10).

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Answer:

\(\angle\,JLF = 114^o\)  which agrees with option"B" of the possible answers listed

Step-by-step explanation:

Notice that in order to solve this problem  (find angle JLF) , we need to find the value of the angle defined by JLG and subtract it from \(180^o\), since they are supplementary angles. So we focus on such, and start by drawing the radii that connects the center of the circle (point "O") to points G and H, in order to observe the central angles that are given to us as \(90^o\) and \(138^o\). (see attached image)

We put our efforts into solving the right angle triangle denoted with green borders.

Notice as well, that the triangle JOH that is formed with the two radii and the segment that joins point J to point G, is an isosceles triangle, and therefore the two angles opposite to these equal radius sides, must be equal. We see that angle JOH can be calculated by : \(360^o-90^o-138^o=132^o\)

Therefore, the two equal acute angles in the triangle JOH should add to:

\(180^o-132^o=48^o\) resulting then in each small acute angle of measure \(24^o\).

Now referring to the green sided right angle triangle we can find find angle JLG, using: \(180^o-24^o-90^o=66^o\)

Finally, the requested measure of angle JLF is obtained via: \(180^o-66^o=114^o\)

Answer:

ace, attack, antenna, approach, assist.

Step-by-step explanation:

Answer:

85 degrees

Step-by-step explanation:

Answer:

Step-by-step explanation:

11 times 22

the area of its cross-section multiplied by the length

answer: 242cm squared

Answer:

a 2E2

Step-by-step explanation:

\(\frac{2^{-3} }{2^{-5} }\)  When powers have the same bases and you are dividing, you subtract the exponents.

\(2^{-3 - -5}\) = \(2^{-3+5}\) = \(2^{2}\)

Answer: 1, 2, 4

Step-by-step explanation:

Those pairs of angles share the same vertex and side.

Answer:

It should be

(160, 160)

(170, 170)

(202, 202)

(195, 195)

(210, 210 )

(352, 352)

Step-by-step explanation:

Answer:

202cm tall, or B on edge

Step-by-step explanation: