Answer:
Step-by-step explanation:
Answer:
66. Assuming after you substituted 3 in place of x, you followed order of operations, or PEMDAS.
Step-by-step explanation:
6(2x) + 9x +3 = area
6 (2(3)) + 9(3) + 3 = area
6 x 6 + 27 + 3 = area
36 + 30 = 66
area = 66
"x" represents an unknown number, we know that 70% of x equals 63.
To calculate the percentage of a number you have to multiply the said number by the percentage, in this case, 70%, and divide the result by 100:
So the 70% of x can be calculated as:

You can simplify this expression by solving the division

Then the expression that shows you the relationship is

Using this expression you can determine the value of x, to do so you have to divide both sides of the equal sign by 0.7

The value of x is 90
Answer:
-9°F
Step-by-step explanation:
0, 4, 14 are all greater than -9
Answer:
n = 3.17
Step-by-step explanation:
Given:
8n − 6 = 2n + 13
Collect like terms
8n - 2n = 13 + 6
6n = 19
Divide both sides by 6
n = 19/6
= 3.167
Approximately to the nearest tenth
n = 3.17