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USPshnik [31]
2 years ago
14

2. The cost of having a window fixed is $100 plus $20 per hour of labor. Using h for the number of hours of labor, write an expr

ession that represents the total cost.
O 100+ 20
O 20 + 100h
O 100 + 20h
O 120h
Mathematics
1 answer:
ahrayia [7]2 years ago
5 0

Answer:

the third one

Step-by-step explanation:

I hope this helps with your question :)

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Tyler ate lunch at a restaurant. The bill came to $15. If he left a 15% tip, how much was the tip?
den301095 [7]

Answer:$13 dollars

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve and verify please solve​
RUDIKE [14]

Answer:

Below in bold.

Step-by-step explanation:

I'll solve a few of them to illustrate the method:

a) 5x - (3x - 1) = x - 4

The aim is to get all the 'x' terms to one sides of the '=' and the numbers to the other side:

Distribute the negative over the 3x - 1 in the parentheses:

5x - 3x + 1 = x - 4        ( Note that  -* -1 = + 1)

Now subtract  1 from both sides:

5x - 3x + 1 - 1 = x - 4 - 1

5x - 3x = x - 5

Now subtract x from both sides:

5x - 3x - x = x - x - 5.

2x - x = -5

x = -5.

(b) 3/5 x + 1 = 2/5 - 3x

We first get rid of the fractions by multiplying each term by 5:

5 * 3/5 x + 1*5 = 5 * 2/5 - 5*3x

3x + 5 = 2 - 15x

3x + 15x + 5 = 2 - 15x + 15x        (adding 15x to both sides)

18x + 5 = 2          Subtract 5 from both sides:

18x + 5 - 5 = 2 - 5

18x = -3

Now we divide both sides by 18:

x = -3/18 = -1/6.

g) 0.3(6 + m) = 0.4(8 - m)

0.3 * 6 + 0.3* m = 0.4*8 + 0.4 * -m   ( Distributing the 0.3 and 0.4 over the parentheses)

1.8 + 0.3m = 3.2 - 0.4m        ( recall that + * - = -)

1.8 - 1.8 + 0.3m = 3.2 - 1.8 - 0.4m

0.3m = 1.4 - 0.4m

0.3m + 0.4m = 1.4 - 0.4m + 0.4m

0.7m = 1.4

m = 1/4/0.7

m =  2.

I hope this helps.

5 0
3 years ago
What is 14 x 72 equal
irina1246 [14]

Answer:

1008

Step-by-step explanation:

When you multiply, always start on the first value. In this case, this would be 2 from 72.

2 * 4

==> 8[tex]and[tex]2 * 1

2

Write now, you should have 82 as your first value.

Now for your second value, which would be 7. But first you need to add a zero, because you are doing the tens place.

7 * 4

==> 28

<u>Now you put the two over your next equation:</u>

and

7 * 1

==> 7

+1

==> 9

Now you should have 980 written.

<u>Now add your two numbers together:</u>

<u></u>

82 + 980

==> 1008

3 0
3 years ago
Read 2 more answers
Can two items have the same surface area but different volumes
Irina18 [472]
No, they're not proportional to each other
5 0
3 years ago
Natalie is a lab technician and earns $10.65 per hour. What are her wages for 40 hours?
FrozenT [24]
$ 426. I’m pretty sure. If it’s 10.65 per hour then just multiply that by 40 to find the wage
8 0
3 years ago
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