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Gekata [30.6K]
3 years ago
10

Which statements are true about the ordered pair (-3,1) in the system of equations {x-4y=6 {3x+y=-8 select each correct answer

Mathematics
2 answers:
My name is Ann [436]3 years ago
8 0
The correct answer should be B :)
velikii [3]3 years ago
5 0

Answer:

-3,5

Step-by-step explanation:

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Rent-Me Rent-A-Car charges $25.00 per day plus $0.14 per mile to rent an economy car. Better Deal Rental Car charges $23.00 per
zalisa [80]

Answer:

The number of miles at which a car rented from either company cost the same amount is <u>50 miles</u>.

Step-by-step explanation:

Let x represents the number of miles at which a car rented from either company cost the same amount. Therefore, we can have the following equation:

RC = 25 + 0.14x ....................... (1)

BC = 23 + 0.18x ...................... (2)

Where;

RC = Total cost of Rent-Me Rent-A-Car

BC = Total cost of Better Deal Rental Car

The the cost of the two companies equal where RC = BC. Therefore, we equate equations (1) and (2) and solve for x as follows:

25 + 0.14x = 23 + 0.18x

25 - 23 = 0.18x - 0.14x

2 = 0.04x

x = 2 / 0.04

x = 50

Therefore, the number of miles at which a car rented from either company cost the same amount is <u>50 miles</u>.

<u>Note:</u>

This can be confirmed for equations (1) and (2) individually by substituting for x = 50 as follows:

For equation (1):

RC = 25 + 0.14(50)

RC = 25 + 7

RC = 32

For equation (2):

BC = 23 + 0.18(50)

BC = 23 + 9

BC = 32

Therefore, RC = BC = 32 confirms the answer.

3 0
3 years ago
Need some help with this question.
Sergio [31]
The expected value would be 12 as it has the highest P(outcome).
7 0
3 years ago
What is the axis of a graph used for? Select all that apply. a starting point with equal intervals that follow a stopping point
Ronch [10]

Answer:

A scale to plot data

It is hard to tell the difference between the choices. If they are the following:

  • a starting point with equal intervals that follow
  • a stopping point for the data that can fit on the graph
  • a way to locate data
  • a scale to plot data
3 0
3 years ago
Read 2 more answers
Of the 725 students at Franklin Middle School, 12/25 play a sport. How many students play a sport at Franklin Middle School?
Paladinen [302]

Answer:

348 out of 725

Step-by-step explanation:

This is a ratio question, giving us a sample that we can use to extend the number to all students.

12/25 students play a sport so we want the value of x in x/725

So:

12/25 = x/725

Cross-Multiply:

25x = 8700

Divide by 25 to get x:

348

You can also check by dividing these ratios to see if you get the same number. In this case, you do (.48).

8 0
3 years ago
Please help
koban [17]

Step-by-step explanation:

240.70×4=962.8 (for return)

569×4=2240 (hotel cost)

28×4=112 (return airport)

962.8+2240+112=3,314.8

it will cost $3,314.8 for a family of 4.

5 0
2 years ago
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