Answer:
Mike has $100. Every week, he spends $8 on a new book. How many weeks would it take for him to have $28 left?
Step-by-step explanation:
Answer:
The answer is A.
Step-by-step explanation:
Excluded values are values that will make the denominator of a fraction equal to 0. You can't divide by 0, so it's very important to find these excluded values when you're solving a rational expression.
Using proportions, it is found that the computer will cost $1,043.04.
<h3>What is a proportion?</h3>
A proportion is a fraction of total amount.
In this problem, the total amount is composed by:
- An initial payment of $150.
- 6% sales tax, which means that the price is increased by 6%, that is, the previous amount is multiplied by 1.06.
Hence, the cost is given by:
C = 1.06 x (150 + 12 x 69.50) = 1043.04.
The computer will cost $1,043.04.
You can learn more about proportions at brainly.com/question/24372153
Answer:
Step-by-step explanation:
3/(x-2) - 2/(x+3) = 1....multiply everything by (x-2)(x+3)
3/(x-2) * (x-2)(x+3) - 2/(x+3) * (x-2)(x+3) = 1(x-2)(x+3)
3(x+3) - 2(x-2) = 1(x-2)(x+3)
3x + 9 -2x + 4 = (x-2)(x+3)
x + 13 = x^2 + x - 6
x^2 - x + x - 6 - 13 = 0
x^2 - 19 = 0
x^2 = 19....take sq rt of both sides
sqrt(x^2) = sqrt 19
x = sqrt 19 and x = - sqrt 19 <====
Answer:
Step-by-step explanation:
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