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3 years ago

15

The temperature has been going down at a constant rate. In 3 hours it went down 15 degrees. Which expression best shows the temp

erature change each hour? A.−15⋅−3 B. 15⋅3 C. −15÷3 D.15÷3

2 answers:

erik [133]3 years ago

7 0

The answer would be letter D. Hope this helps....

Alecsey [184]3 years ago

4 0

Hey there!

I think it’s either A or D

Hope this helps!

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1/3 cup of flour is used to make 5 dinner rolls.

RoseWind [281]

we know that

$\frac{1}{3}$ cup of flour is used to make $5$ dinner rolls.

Part a) How much flour is needed to make one dinner roll?

by using proportion

$\frac{\frac{1}{3}}{5} =\frac{x}{1} \\ \\ x=\frac{\frac{1}{3}}{5}\\ \\ x=\frac{1}{15}$

therefore

the answer Part a) is

To make one dinner roll is needed $\frac{1}{15}$ cup of flour

Part b) How many cups of flour are needed to make 3 dozen dinner rolls?

Multiply the value obtained in part a) by $36$

so

$\frac{1}{15} *36=\frac{36}{15} \\ \\ =\frac{12}{5}$

$\frac{12}{5} =2\frac{2}{5}$

therefore

the answer Part b) is

To make $3$ dozen dinner rolls are needed $2\frac{2}{5}$ cup of flour

Part c) How many rolls can you make with 5 2/3 cups of flour?

$5\frac{2}{3} =\frac{17}{3}$

by using proportion

$\frac{\frac{1}{3}}{5} =\frac{\frac{17}{3}}{x} \\ \\ \frac{x}{3} =\frac{85}{3} \\ \\ x=85$

therefore

the answer part c) is

$85$ rolls

6 0

3 years ago

Read 2 more answers

You are graphing Rectangle ABCD in the coordinate plane. The following are three of the vertices of the

egoroff_w [7]

Are you looking for D on the graph? if so, then the final coordinate to complete the rectangle is (-2,-8)

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Tasya [4]

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3. If your siice a rectangular pyramid parallel to it base, what will be the shape of the cross section?

zubka84 [21]

Answer:

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2 years ago

Can you please help me figure out how the answer is 1/9 im getting 9

timama [110]

Can you upload another picture, you cannot really see your problem

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3 years ago