An observational study showed that the average four-year-old could assemble a toy in 15 seconds. the average five-year-old could assemble the same toy 40 percent faster. how many seconds did it take the average five-year-old to assemble the toy?

you find 40 percent of fifteen, and subtract it. so the correct answer is 9 seconds

He could assemble it in 9 seconds.

Step-by-step explanation:

40 percent of 15 is 6. 15 - 6 is 9. You would subtract six because the five year old did it faster but if he did it 40 percent slower it would have taken him 21 seconds. Hope this helps:)

i don't even know man. edge inuity be messing with us. i had to ask a question too.

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)