Boys did 1/8 of his homework at school and 1/16 of his homework on the bus ride home. Boyd plans to do the rest at home. What percent of Boyd's homework does he plan to do at home?

81.25%

Step-by-step explanation:

Let the total homework of a boy be x

Part of homework done at school= x

Part of homework done at bus ride home= x

Part of homework done = x + x

Part of homework done =

Part of homework left to be done at home= x -

Part of homework left to be done at home=

Percentage of homework of the total work is to be done at home=  × 100%

Percentage of homework of the total work is to be done at home= 81.25%

Hence, the correct answer is 81.25%

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17