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Degger [83]
3 years ago
14

A painter charges $15.53 per hour, plus an additional amount for the supplies. If he made $157.80 on a job where he worked 5 hou

rs, how much did the supplies cost?
Mathematics
1 answer:
Bingel [31]3 years ago
6 0

Answer:

$80.15

Step-by-step explanation:

We can make an equation to solve this problem, that helps a lot. If h represented hours, we could make the equation 15.53h+s=157.8

Now we know that he worked 5 hours, so we can multiply 15.53 by 5 to simplify the equation.

15.53*5=77.65

So now the equation is 77.65+s=157.8.

Now, we can subtract 77.65 from both sides.

So now, our final equation is s=80.15

It cost $80.15 to buy supplies.

Hope this helps!

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Rob laid three sticks end to end. The lengths of the sticks were 45 millimeters, 32 centimeters, and 4 decimeters. How long, in
Oksanka [162]

Answer:

<u>0.765 meters</u> long were the sticks when laid end to end.

Step-by-step explanation:

Given:

Rob laid three sticks end to end. The lengths of the sticks were 45 millimeters, 32 centimeters, and 4 decimeters.

Now, to find the length in meters of the sticks when laid end to end.

The lengths of the sticks are:

1st stick - 45 millimeters.

2nd stick - 32 centimeters.

3rd stick - 4 decimeters.

So, we convert the units of sticks into meters by using conversion factor:

1st stick:

1 millimeter = 0.001 meter.

45 millimeters = 0.001 × 45

45 millimeters = 0.045 meter.

2nd stick:

1 centimeter = 0.01 meter.

32 centimeters = 0.01 × 32

32 centimeters = 0.32 meter.

3rd stick:

1 decimeter = 0.1 meter.

4 decimeters = 0.1 × 4

4 decimeters = 0.4 meter.

Now, adding all the three sticks length to get the the length in meters of the sticks when laid end to end:

0.045+0.32+0.4\\\\=0.765\ meters.

Therefore, 0.765 meters long were the sticks when laid end to end.

5 0
3 years ago
A passenger car weighs 4.5 times 10 Superscript 3 units. Which unit of measure was used?
Pepsi [2]
20? I’m not for sure maybe look in the book? That’s the answer I got and it was right
5 1
3 years ago
Read 2 more answers
What is the vertex of the quadratic function?
Debora [2.8K]

Answer:

f(x) = x² - 4x - 12

Step-by-step explanation:

f(x) = (x - 6)(x + 2)

f(x) = x² + 2x - 6x - 12

f(x) = x² - 4x - 12

3 0
3 years ago
A recipe calls for 1/2 cup of celery,2 1/3 of water and 3/4 cups of carrots. What the combined amont of these three ingredients?
lys-0071 [83]

Answer:

43/12

Step-by-step explanation:

First we must find a common denominator for all 3 fractions, 1/2 cup, 2 1/3 cup, and 3/4 cup all share 12 as a common denominator.

However, let's convert 2 1/3 cup into an improper fraction: there are 2 (3/3 cups) here multiply (3/3) and (2/1) you get 6/3. Finally, add the remaining 1/3 to 6/3 and you get 7/3.

Now, to get all these fractions to have the same common denominator.

(1/2) ×(6/6)=(6/12)

(7/3)×(4/4)=(28/12)

(3/4)×(3/3)=(9/12)

Add them all together and your answer is: (43/12)

7 0
3 years ago
Enrico is filling his pool. The pool has 3,000 gallons of water now. The water hose used by Enrico puts 500 gallons per hour in
Tju [1.3M]

Answer:

6

Step-by-step explanation:

5 0
3 years ago
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