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svp [43]
3 years ago
7

A plumber charges $40 to come to your house and $25 for each hour of labor. If the final bill came to $165, how many hours did t

he plumber work?
Mathematics
2 answers:
jolli1 [7]3 years ago
7 0
The answer is 5 hours.

Step-by-step:

The equation would be

165=25x+40

Subtract 40 from both sides

125=25x

Then, divide both sides by 25 to get

5=x

Answer: 5 hours.
k0ka [10]3 years ago
6 0

Answer:5 hours

is the amount he worked

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An extra large pizza recipe uses 6 ounces of cheese, 12 ounces of sauce, and 36 ounces of dough. In simplest form, how many ounc
Vinil7 [7]

Answer:

ratio dough:cheese 6:1

Step-by-step explanation:

36 ÷ 6 = 6

._.

6 0
3 years ago
Read 2 more answers
Simplify and express in exponential form: 8^-1 * 3^3/ 2^-4 * 9^-2
Yuri [45]

Answer:

2^1* 3^7

Step-by-step explanation:

8^-1 * 3^3/ 2^-4 * 9^-2

Negative exponents move from the numerator to the denominator or from the denominator to the numerator

2^4*9^2* 3^3 /8^1  

Rewriting 9^2 as 3^2^2 = 3^4  and 8 = 2^3

2^4 * 3^3 * 3^4 / 2^3

2^4/ 2^3 = 2   and 3^3 * 3^4 = 3^(3+4) = 3^7

2* 3^7

5 0
3 years ago
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What is 2878 divided by 55
likoan [24]

Answer:

52.3272727...

the 27 at the end is repeating

8 0
3 years ago
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Find the equation of the line passing through the point (2, -4) that is parallel to the line y=3x+2​
castortr0y [4]

Answer <u>(assuming it can be put in point-slope format)</u>:

y + 4 = 3(x-2)

Step-by-step explanation:

You can write an equation of a line when knowing its slope and a line it passes through using point slope formula, y-y_1 = m (x-x_1).

1) First, find the slope of the equation. We know it has to be parallel to y = 3x + 2. Lines that are parallel have the same slope, thus the slope of y = 3x + 2 is the slope of the answer as well. y = 3x + 2 is in slope-intercept format, or y = mx + b. The coefficient of the x term, or m, represents the slope - so, the slope must be 3.

2) Now, use point-slope formula,y-y_1 = m (x-x_1),  to write the equation. Substitute m, x_1, and y_1 for real values.

The m represents the slope, so substitute 3 for m. The x_1 and y_1 represent the x and y values of a point the line crosses through. The line crosses through (2, -4), so substitute 2 for x_1 and -4 for y_1. This gives the following answer:

y - (-4) = 3 (x-(2))\\y + 4 = 3(x-2)

3 0
3 years ago
I will give thanks and five stars to the person that helps me.
Rzqust [24]

Answer:

x > 75

Step-by-step explanation:

x/5 + 6 > 21

Subtract 6 from both sides.

x/5 > 15

Multiply both sides by 5.

x > 75

Answer: x > 75

3 0
3 years ago
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