2(3x-4) = 5x+6
First, expand the bracket.
6x-8=5x+6
Next, move the variables to the same side.
x-8=6
Move the -8 to the other side, change to +
x=6+8
x=14
Charlie’s solution is incorrect. When expanding the bracket, he changed the - to a +.
Answer: 14
The number to the right of the decimal point is either 5 or greater than that, so the 13 is increased by 1 which results in 14.
The volume of a rectangular pyramid
Given a rectangular pyramid of width W, length L, and Height H, the volume is
We have to assume the pyramid given in the question has a square shape of length and width of L=34.5 feet and W = 34.5 feet, and a height of H=55 feet, thus the volume is:
Correct choice: A
Answer:
2140
Step-by-step explanation:
Answer:
~ 7m-20
Explanation:
~ First, we need to look at like terms and collect them. Like terms are similar numbers like all the m’s can be collected together.
~ Let’s count the number of m’s first. M+m+m+2m+2m should give you 7m.
~ Now lets just count the rest of the numbers: 15+15-30-20. 15+15=30, 30-30=0 and 0-20=-20.
~ Hence you get the answer of 7m-20
