9514 1404 393
Answer:
Step-by-step explanation:
See the attachment for the working out of the long division.
If they all painted at the same rate the equation is this
mothers 8
daughters 12 at 220 sq ft
mothers 6
daughters 8 at 152 sq ft
220 +152 =372 divided by 34 (because they all painted at the same rate)=10.94 sq ft they each painted
Answer:
C. 3.33 hours
Step-by-step explanation:
Use the algebra work equation:
= + , where tb is the time to work together, t1 is the time it takes one person, and t2 is the time it takes the other person
Plug in the values we know:
= +
= +
=
20 = 6tb
3.33 = tb
So, it would take them 3.33 hours when working together.
3/4x = 9....multiply both sides by 4 <==
3x = 9 * 4
3x = 36
x = 36/3
x = 12