*************medals and fans*************Marty's class collected $21.00 in a school-wide penny collection contest. If Tommy's class added $2.70 to the amount they collected, x, and then multiplied the sum by 2, they would have the same amount of money as Marty's class.

2(x + $2.70)= $21.00

How much money did Tommy's class collect?

Question

*************medals and fans*************Marty's class collected $21.00 in a school-wide penny collection contest. If Tommy's class added $2.70 to the amount they collected, x, and then multiplied the sum by 2, they would have the same amount of money as Marty's class.


2(x + $2.70)= $21.00

How much money did Tommy's class collect?

anonymous · Answer

$10.50





$13.20





$7.80





$2.70

kamibug · Answer

The variable in the equation represents the amount Tommy's class collected so simply solve the equation for x... 

1. Distribute

2x + 5.40 = 21.00

2. Isolate the variable

2x = 15.60

x = 7.80

anonymous · Answer

Thanks you so much

kamibug · Answer

Sure :)