Answer: x=10
Step-by-step explanation:
=
=
5(x+5)=3(3x-5)
5x+25=9x-15
25=4x-15
4x=40
x=10
Answer: 100 - 24x
Step-by-step explanation:
The formula for calculating the perimeter of a square is given by :
P = 4l , where l is the length of the side.
Perimeter of square A will be
P = 4 ( 2x - 7 )
P = 8x - 28
Perimeter of square B will be ;
P = 4 ( -4x + 18 )
P = - 16x + 72
Perimeter of square B - Perimeter of square A implies
-16x + 72 - ( 8x - 28 )
-16x + 72 - 8x + 28
collecting the like terms
-16x - 8x + 72 + 28
-24x + 100
⇒ 100 - 24x
Scott spent $21 out of his $300
$21/$300 = 0.07
<u>Multiply the answer by 100</u> to get it as a <u>percentage</u>:
0.07*100 = 7
Therefore, Scott spent 7% of his paycheck on a gift
Answer:
4
Step-by-step explanation:
-6-5(4-6)
PEMDAS stands for parenthesis, exponent, multiply, divide, add, subtract. Let's follow those rules!
First, we'll do the parenthesis.
-6-20+30
Now we can just add and subtract everything together.
-6+10
4
