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Sati [7]
3 years ago
13

Shelley charges $13 an hour to babysit kids in her neighborhood. Which ordered pairs represent the time she works, in hours, and

the money she earns, in dollars?
Mathematics
1 answer:
Shtirlitz [24]3 years ago
5 0

Answer:

The correct answer is ( x , 13x ) where x is the number of hours Shelley works as a babysitter and x is any real number.

Step-by-step explanation:

Shelley charges $13 hourly to babysit kids in her neighborhood.

Let Shelly babysit a kid for x hours.

Amount of money Shelley charges in order to babysit kids for x hours is $ 13x.

Thus the ordered pair to demonstrate this scenario is (time in hours, money in dollars) = (x , 13x) where x can be any real number.

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Car A travels 185 miles in 8 hours. Car B travels
svetoff [14.1K]
Car B because 334 divided by 5= 41 mph
8 0
3 years ago
Sheila, janice, and katen, working together at the same rate, can complete a job in 3 1/3 days. Working at the same rate, how mu
pychu [463]

Answer:

Janice and Karen could do in 1 day:

  • <u>20% of the job</u>.

Step-by-step explanation:

To identify how much of the job could janice and caren do in 1 day, first, we must find how much of the job make just 1 person at the same rate:

If three persons make a job in 3 1/3 days, 1 person make the job in x:

  • 3 persons ⇒ 3 1/3 days or 10/3 days
  • 1 person ⇒ x

Then:

  • x=\frac{1 person*\frac{10}{3}days }{3 persons} (we cancel the unit "persons")
  • x=\frac{\frac{10}{3}days }{3}
  • x = 10 days

Just a person would need 10 days to complete a job, now, we're gonna divide this value in 2 to obtain the time that need two persons to complete a job:

  • Time to complete a job between 2 persons = \frac{10}{2}days
  • Time to complete a job between 2 persons = 5 days

How two persons need 5 days to complete a job (in this case, the two persons are Janice and Karen), we can make a simple rule of three to obtain the percentage made in 1 day:

  • 5 days ⇒ 100% of a job
  • 1 day ⇒ x

Then:

  • x=\frac{1*100}{5} (you can use the % if you want, the result is the same)
  • x=\frac{100}{5}
  • x=20

As you can see, <u><em>Janice and Karen just in a day could do 20% of the job</em></u>.

3 0
3 years ago
The sum of two numbers is 724. one of the numbers is 217. what is the other number?
Anni [7]

Answer:

507

Step-by-step explanation:

For the Algebraic Expression,

let the two numbers be X and y

lets assume x = 217

From the question,

217 + y = 724

y = 724-217

y = 507

Therefore, the other number is 507

4 0
1 year ago
Solve 7x - 8(2x - 3) + 2 = 8 *
levacccp [35]

Answer:

Step-by-step explanation:

7x - 8(2x - 3) + 2 = 8

Expand bracket and Minus 2 on both sides

7x - 16x + 24 = 6

Minus 24 on both sides, and simplify the "x's"

-9x = -18

Divide by -9 on both sides

x = 2

5 0
3 years ago
Complete the solution of the equation. Find the
Katena32 [7]
Y = negative 697/100
6 0
3 years ago
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