Answer:
Part A
Add Like terms
6x + 2x + 13 = 3x - 12
8x + 13 = 3x - 12
get x on the left side
5x + 13 = -12
Subtract 13 from both sides
5x = -13 -12
5x = -25
Divide both sides by 5
x = -5
Step-by-step explanation:
Answer:
About 42%
Step-by-step explanation:
Answer: $56.25
Step-by-step explanation:
Money: $1000
Interest: 7.5% or
There are two steps you can use to find this.
First
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To find the annual interest multiply by the rate.
We can now find how much that is per month;
per month, to find how much that is in 9 months, multiply by 9
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Second
You know 12 months is 1 year, you divide the amount of months that we're trying to calculate the interest of, by the amount of years in months; in this case, 12.
Multiply that by the interest and the total amount.
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Answer:
Length of fencing needed = 4x + 45
Step-by-step explanation:
Assume;
Width of rectangle = x
So,
Length of rectangle = x + 45
Find:
Length of fencing needed
Computation:
Length of fencing needed = 2(l+b) + b
Length of fencing needed = 2(x+45+x) + x
Length of fencing needed = 2(2x+45) + x
Length of fencing needed = 4x + 45