If ab = 10 what is the length of de?

DE = 11

Step-by-step explanation:

Line AC and CB both multiply to the same amount that lines DC and CE do.

Line CB is equal to 10 - 4 = 6

So then 4 x 6 is equal to line DC,

But the result is 24, so we need to divide by 8 to find the lone side:

24 ÷ 8 = 3

So line DC = 3

Line DE = DC + CE = 3 + 8

y=mx+b is the final answer!   : )

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m