Question

(100 pts.) Pre-Al Ratios and Proportionality, check img attactched

Answer 1

16

Explanation:

Answer 2

This year the parking lot should have 16 spaces for RVs

Explanation:

we know that

using proportion

`(66)/(104-r)=(12)/(r)`

solve for r

Multiply in cross

`(66)(r)=(104-r)(12)`

`66r=1,248-12r`

`78r=1,248`

`r=16`

therefore

This year the parking lot should have 16 spaces for RVs

x ----> the number of car spaces

r ----> the number of RV spaces

we know that

`(x)/(r)=(66)/(12)=5.5`

`x=5.5r` ----> equation A

`x+r=104` ----> equation B

substitute equation A in equation B

`5.5r+r=104`

solve for r

`6.5r=104` \

`5.5r+r=104`