It is good equation. Look, that:
81 = 3 x 3 x 3 x 3 = 3^4.
So you have to solve:
3^x = 3^4
exponents have to be the same, so
x=4
That's mean that A(4) = 81
Roberto paints 1/6 of a room in 1 hour.
Julio paints1/8 of a room in 1 hour.
Working together, they paint (1/6 + 1/8) = (4/24 + 3/24) = 7/24 room per hour.
The reciprocal unit rate is 24/7 hour per room = <em>3-3/7 hours</em> per room.
Answer:
660 cubic inches
Step-by-step explanation:
Volume = length x width x height
Volume = 6 x 11 x 10
Volume = 660 cubic in
$790 because it would be 79 times 10
Yes that it's correct because numbers that are 5+ round up and numbers that are 4-stay the same.
