So based on your diagram the following are the answers to your questions:
<span>(a) Use an equation to express the length y of the building in terms of the width x.
</span>- y(x) = 600/x
(b) If the walls cost $100 per running foot, use an equation to express the cost C of the <span>walls in terms of the width x.
- the answer is 6
</span>
Answer:
3x-y=15 should be the answer
Answer:
X=22.5
Step-by-step explanation:
Y=kX
20=15k
k=4/3
For X when Y=30
30=4/3×X
Cross multiply
4X=90
X=22.5
