If nick bought 5 apples for 4.45 what would be the cost for 7 apples

Mathematics

2 answers:

natka813 [3]4 years ago

8 0

4.45/5 = .89 ea therefore if you multiply .89 by 7 you would get $6.23

8090 [49]4 years ago

6 0

Hi there!

First, we need to divide 4.45 by 5

Which would give us - 0.89

Therefore, now we know that each apple costs $0.89

2 more apples would be 0.89 + 0.89 + 4.45 = 6.23

Therefore the answer is $6.23 = 7 apples

Hope this helps you!

~DL

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If the angle of elevation of the sun is 61.7° when a building casts a shadow of 56.5 feet, what is the height of the building ro

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Let us use a simple diagram to interprete the question

In the diagram above, the dark stuff below represents the shadow and the rectangular bar represents the building. I have labelled the height of the building as h.

So we will use the right-angled triangle formed to find h

As we can see h represents the opposite side and 56.5 feet represents the adjacent side of the right-angle triangle. So we will use TOA

$\text{TOA tan }\theta=\frac{opposite}{\text{adjacent}}$

So we have

$\begin{gathered} \text{ tan }\theta=\frac{opposite}{\text{adjacent}} \\ \text{ tan }61.7\degree=\frac{h}{56.5} \\ 1.8572015=\frac{h}{56.5} \\ \text{cross multiplying, we have } \\ h=1.8572015\times56.5 \\ h=104.931887 \end{gathered}$

Hence the answer is 104.9 feet to the nearest tenth