Question

your school buys 30 graphing calculators for 1822.50. Write and solve a proportion that gives the cost c of buying 120 calculators.
solve it i will pick brainiest. ​

Answer 1

Answer:

7290

Step-by-step explanation:

Using proportion then

$\frac{1822.5}{30}$ = $\frac{c}{120}$ ( cross- multiply )

30c = 18700 ( divide both sides by 30 )

c = 7290

The cost of 120 calculators is 7290