Answer:
B
Step-by-step explanation:
He needs $78.95 to buy 5 of each
Answer:
<em>Solution: x=5</em>
Step-by-step explanation:
<u>Equations</u>
This is an equation in the form of a proportion or ratio:
To solve it, we eliminate the denominators by multiplying by both of them.
Multiply by (x+3)(4x):
Simplify both sides:
Operate:
Simplify:
Solve for x:
Solution: x=5
Answer:
-3
Step-by-step explanation:
Step 1: Write equation
-7.6(x - 1) = 7.3 - 7.4x
Step 2: Solve for <em>x</em>
<u>Distribute -7.6:</u> -7.6x + 7.6 = 7.3 - 7.4x
<u>Add 7.6x on both sides:</u> 7.6 = 7.3 + 0.2x
<u>Subtract 7.3 on both sides:</u> 0.3 = 0.2x
<u>Divide both sides by 0.2:</u> x = 1.5
Step 3: Find <em>-2x</em>
-2(1.5) = -3
The rectangle has an area of 18x8 = 144 sq in. The circle has an area of (pi)r^2 or (pi)3^2 =28.27sq in. Subtract 144 - 28.27 = 115.73
