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Ugo [173]
3 years ago
15

Jean is making bar graphs for a representation. She is planning for the length and width of the bars to have a ratio of 3:2, so

that they satisfy this equation.
2l = 3w

If one of the bars is 7 centimeters wide, what should be it's length. Find and explain how you found the solution to this answer.

A.21 cm

B. 14 cm

C. 10 1/2 cm

D. 4 2/3 cm

Please explain how you found the answer.
Mathematics
1 answer:
raketka [301]3 years ago
6 0

Answer: C. 10\frac{1}{2}\ cm


Step-by-step explanation:

Given: The ratio of length to width = 3:2,such that the equation she formed is

2l=3w

The width of bar w= 7 cm

Then substitute this value in the equation and solve , we get

2l=3\times7\\\Rightarrow2l=21\\\Rightarrow\ l=\frac{21}{2}\\\Rightarrow\ l=10\frac{1}{2}

Hence the length of the bar = 10\frac{1}{2}\ cm

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The washer in the image has an inner diameter of 1/4 inch. The outer diameter measures 3/4 inch, and the washer is 1/4 inch thic
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<em>Comment on the question</em>

Since this answer does not correspond to any of the offered choices, we suggest you ask your teacher to work this out for you. We suspect they will have difficulty justifying any of the answer choices shown here. (0.11 lb corresponds to 4 washers, not 5.)

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