This cube has 6 faces, and all side lengths are equal.
The volume of a cube with sides of length L is given by L^3.
The problem says that the volume is 7^3, which means that each side is 7
The surface area of a cube of length L is 6*L^2. Since L = 7, the surface area is:
6*7^2 = 6*49 = 294 cm^2
Answer:
Step-by-step explanation:
69 + 15h = 39h
69 = 39h - 15h
69 = 24h
69/24 = h
2.875 hrs <======
69 + 15(2.875) = 39(2.875)
69 + 43.125 = 112.125
$ 112.125 = $ 112.125 <====
I didn't round anything.
Answer:
1.5x+4
Step-by-step explanation:
So, givens: total lesson cost of $260, total lessons taken are 6, and the first lesson costs 1.5 (or 3/2) as much as the additional lessons.
First thing to do is to figure out how many additional lessons are in that, which are 5.
Then you can make a 1 variable equation with the information you have. I’m using x as my variable.
260= 3/2x + 5x
Combine like terms.
260 = 13/2x
Divide both sides by 13/2 (treat it as a fraction, and if your calculator cannot make fractions, then decimal might help for this. 13/2=6.5)
X=40
