Question

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

Answer 1

Answer:

This year the parking lot should have 16 spaces for RVs

Step-by-step explanation:

we know that

using proportion

$\frac{66}{104-r}=\frac{12}{r}$

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

$\frac{x}{r}=\frac{66}{12}=5.5$

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

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

substitute equation A in equation B

$5.5r+r=104$

solve for r

$6.5r=104$ \

$5.5r+r=104$

Answer 2

Answer:

16

Step-by-step explanation: