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Rasek [7]
2 years ago
15

Bert is saving money to buy a new phone that costs $153.66, including tax. He does yard work around his neighborhood to earn mon

ey. He charges $9.85 per hour.
Part B:

How many hours will Bert have to work to earn enough money to buy the phone?
Mathematics
1 answer:
mash [69]2 years ago
5 0

Answer:

4.57

Step-by-step explanation:

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at Michaels auto shop, it takes him 15 minutes to do an oil change and 24 minutes to do a tire change. let x be the number of oi
Roman55 [17]

Answer:

Step-by-step explanation:

At Susan's auto shop, it takes her 12 minutes to do an oil change and 18 minutes to do a tire change. Let x be the number of oil changes she does. Let y be the number of tire changes she does.

Using the values and variables given, write an inequality describing how many oil changes and tire changes Susan can do in less than 3 hours (180 minutes).

Answer provided by our tutors

The total time that Susan needs to change x oil changes and y tire changes is less than 180 min.

The time needed for x oil changes is 12 * x.

The time needed for y tire changes is 18 * y.

The total time is the sum of the above times and needs to be less than 180 that is

12 * x + 18 * y < 180 divide both sides of equation by 6

12/6 * x + 18/6*y < 180/6

2*x + 3*y < 30

2*x < 30 - 3*y divide both sides by 2 to get the inequality for x

x < 30/2 - 3/2*y = 15 - 1.5 y < 15 that is x < = 15

2*x + 3*y < 30

3*y < 30 - 2*x divide both sides by 3 to get the inequality for y

y < 30/3 - 2/3 *x = 10 - 2/3*x < 10 that is y < = 10

Also we can write x + y < x+ 3/2 * y < 15.

Susan can do not more then 5 oil changes and not more then 10 tire changes or all together she can do not more then 15 total of oil and tire changes.

Just do this problem but with Michael

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2 years ago
you own seven travel books and are taking five of them on vacation. in how many ways can you select the five books you will take
Ipatiy [6.2K]
It depends on how many options you have
You multiply the total number of books you have time 5 because you can choose 5
8 0
3 years ago
I NEED HELP WHATS THE ANSWER!!
Nonamiya [84]

Answer:

A is the answer

Step-by-step explanation:

You should pay attention to x^3 when you want to talk about infinite.

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For what temperature if any, does F=3C?
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3 celsius is equal to 37.4 Ferenheight
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3 years ago
A box is 1 m high, 2.5 m long, and 1.5 m wide, what is its volume?
pochemuha

Answer:

3.75

Step-by-step explanation:

<em>v = lbh  \\ 2.5 \times 1.5 \times 1 \\  = 3.75</em>

6 0
3 years ago
Read 2 more answers
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