Carl bought 19 apples or 2 different varieties to make pies. the total cost of apples was $51.00. granny smith apples cost $3.00 per pound and gala apples cost $2.50 per pound. how man pounds of granny apples did carl buy?

12 Granny Smith and 7 Gala apples (total 19 apples)

Explanation:

Let me put this equation first:

X: number of Granny Smith apples

(19-X): number of Gala apples

cos

t

=

X

⋅

0.25

+

(

19

−

X

)

⋅

0.30

5.10

=

0.25

X

+

5.70

−

0.30

X

5.10

−

5.70

=

−

0.05

X

−

0.60

=

−

0.05

X

and

X

=

12

Number of Granny Smith apples is 12.

The rest (19-12) is number of Gala apples. Number of Gala apples is 7.

This satisfies your equation.

Number of Granny Smith apples 12 and number of Gala apples is 7.

coins of silver or gold

step-by-step explanation: