Question

judy is selling 8 ribbons for 10 dollars sarah wants to buy 5 if judy pays the same rate how much sould she pay fo 5 ribbons

Answer 1

JUdy will pay $6.25

Explanation

Step 1

find the rate

$\frac{8\text{ ribbons}}{10\text{ dolars}}=0.8\frac{\text{ribbons}}{\text{dollar}}$

Step 2

if Judy pays the same rate how much should she pay for 5 ribbons

let

y represents the amount Judy pays at the same rate by the 5 ribbons

$\begin{gathered} 0.8\frac{ribbons\text{ }}{\text{dollar}}=\frac{5\text{ ribbons}}{y} \\ 0.8=\frac{5}{y} \end{gathered}$

Step 3

finally, solve for y

$\begin{gathered} 0.8=\frac{5}{y} \\ 0.8y=5 \\ y=\frac{5}{0.8} \\ y=6.25 \end{gathered}$

Hence, Judy will pay $6.25