<span>3x – y = 18
We start by plugging in 27 for y. The goal is to isolate x by itself to solve for x.
3x - 27 = 18
Then we add 27 to both sides of the equation
3x = 45
Lastly, we divide both sides by 3 to finally isolate x by itself and solve.
x = 15</span>
I think the answer is A. 49 units
First, you must convert the decimals to have the same denominator.
Find the least common multiple of both fractions' denominators:
Multiples of 8: {8,16,24,32,40}
Multiples of 10: {10,20,30,40}
The least common multiple of 8 and 10 is 40.
Multiply the fractions by a number that will make their denominator 40:


Now you can add these fractions together:

Simplify this fraction:

The answer should be
1/8.
Answer:
B. x^2
Step-by-step explanation:
If m = x/y and
n = 1/xy
then
m/n = (x/y)/(1/xy)
You can simplify this complex fraction (fraction over a fraction) with the method Keep-Change-Flip. It works!
KEEP x/y
CHANGE ÷ to ×
FLIP 1/xy over to be xy/1
See image.
x/y • xy/1
= x^2
Answer:
x = 9, ∠ 1 = ∠ 2 = 66°
Step-by-step explanation:
If r and s are parallel then
∠ 1 = ∠ 2 ( corresponding angles ) , then
84 - 2x = 93 - 3x ( add 3x to both sides )
84 + x = 93 ( subtract 84 from both sides )
x = 9
Then
∠ 1 = 84 - 2x = 84 - 2(9) = 84 - 18 = 66°
∠ 2 = 93 - 3x = 93 - 3(9) = 93 - 27 = 66°