Question

1.Mary has ( 20xy - 10x²) sweets. She wants to divide the sweets equally among her (5x) friends.

if X=6 and Y=4, how many sweets:
how many friends does Mary have?​

Answer 1

Mary has 120 sweets and 30 friend.

Explanation:

if x = 6 and y = 4

then

20xy - 10x² = 20×(6)×(4)-10×(6^2) = 120

Therefore,

Mary has 120 sweets

……………………………………

if x = 6 and y = 4

then

5x = 5 × (6) = 30

…………………………

120 ÷ 30 = 4

Then 4 sweets per friend.