Step-by-step explanation:
Simplifying 40 = 15 + -9x + -2
Reorder the terms: 40 = 15 + -2 + -9x
Combine like terms: 15 + -2 = 13 40 = 13 + -9x
Solving 40 = 13 + -9x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '9x' to each side of the equation. 40 + 9x = 13 + -9x + 9x
Combine like terms: -9x + 9x = 0 40 + 9x = 13 + 0 40 + 9x = 13
Add '-40' to each side of the equation. 40 + -40 + 9x = 13 + -40
Combine like terms: 40 + -40 = 0 0 + 9x = 13 + -40 9x = 13 + -40
Combine like terms: 13 + -40 = -27 9x = -27
Divide each side by '9'. x = -3
Simplifying x = -3
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to solve this, you need to set up an equation to solve for <em>x, </em>the number of square meters waxed in an hour:

you can use cross multiplication to solve for x:


so jessica can wax 100/3 square meters per hour. you can convert this to decimal form (which would be 33.3 repeating) or you can leave it in fraction form.
Answer:
The average cost this year = $33,093.75
Step-by-step explanation:
The computation of the average cost this year is shown below:
Given that
The average cost for the last year = $31,250
Increased percentage = 5.9%
Based on the above information, the average cost this year is
= The average cost for the last year × (1 + Increased percentage)
= $31,250 × (1 + 0.059)
= $31,250 × 1.059
= $33,093.75
Answer:
There are 24 yellow fish
Step-by-step explanation:
Blue: x
Yellow: x + 6
Black: x - 4
x + (x + 6) + (x - 4) = 56
3x + 2 = 56
3x = 54
x = 18