Willy bought 15 pears and Jack bought 18 oranges. They spent the same amount of money. The difference in cost between a pear and an orange was $0.10. How much did Willy spend on the 15 pears?

Guest Apr 6, 2021

#1**0 **

HINT: Write cost of orange as cost of pear - $0.10$ and set up a system of equations.

RiemannIntegralzzz Apr 6, 2021

#2**+1 **

15 (r+10) = 18 (r) r = price of orange

150 = 3r

r = 50 so 18 oranges is 9 dollars ( the same price as 15 pears)

ElectricPavlov Apr 6, 2021

#3**0 **

1 orange + $0.10

(1 orange + $0.10) * 15

= 15 pears + ( 15 * $0.10)

= 15 pears + $1.50

15 pears + $1.50 = 18 oranges (Cost of 15 pears = Cost of 18 oranges)

18 oranges - 15 pears = 3 oranges

3 oranges —> $1.50

1 orange —> $0.50

1 pear —> $0.50 + $0.10 = $0.60

15 pears —> $0.60 * 15 = $9

Willy spent $9 on the 15 pears.

Guest Apr 6, 2021