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iVinArrow [24]
3 years ago
14

Which ordered pair is the solution to the system of linear equations y = -7x + 2 and y = 9x - 14?

Mathematics
2 answers:
ser-zykov [4K]3 years ago
6 0

Answer:

the answer is (1,-5) I just took the quiz



lisabon 2012 [21]3 years ago
4 0
Y = -7x + 2
y = 9x - 14

-7x + 2 = 9x - 14
14 + 2 = 9x + 7x
16 = 16x
1 = x

y = -7x + 2
y = -7(1) + 2
y = -7 + 2
y = -5

solution is : (1,-5) <==
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Need help with this question.
Vaselesa [24]

Answer:

4:1 (I think)

Step-by-step explanation:

Let's write some equations first:

For both prices increasing by 20:

\frac{x+20}{y+20} =\frac{5}{2}

then we can use cross multiplication

2x+40=5y+100

For both prices decreasing by 5:

\frac{x-5}{y-5} =\frac{5}{1}

same here:

5y-25=x-5

Using substitution for 5y, we get: 5y=x+20

2x+40=5y+100

2x+40=x+20+100

x=80

plugging this in to the second equation:

5y-25=x-5

5y-25=80-5

5y-25=75

5y=100

y=20

therefore we get x:y=80:20

4:1

4 0
3 years ago
Out of every 6 students surveyed, 1 listen to country music. At that rate, how many students in a school of 1200 listens to coun
Degger [83]

Answer: 200

Step-by-step explanation:

1200 divided by 6 = 200

6 0
3 years ago
What is the sum of 7/22 and 9/22
natulia [17]
 when u have a common a denominator then you just add the numerator that would be 7 and 9. 7 + 9= 16
so ur solution would be 16/22 and then u would simplify by dividing both values by 2.
so the solution is8/11
8 0
3 years ago
Read 2 more answers
A laundry detergent cap holds a volume of 6 fluid ounces. Is the volume of 2 laundry detergent caps greater than 1 cup?
andre [41]
1 cup is 8 fluid ounces.

1 cap is 6 oz, 2 caps is 12 oz, is that greater than 8 oz?  well, surely you'd know.
7 0
3 years ago
Zatra is scuba diving 77 meters below the surface of the water After explorng a few minutes, she ascends (goes up) 45 meters to
Shtirlitz [24]

Answer:

New elevation = 122 meter below

Step-by-step explanation:

Given:

Current status = 77 meter below

Additional dive = 45 meter

Find:

New elevation

​Computation:

New elevation = Current status + Additional dive

New elevation = 77 + 45

New elevation = 122 meter below

5 0
3 years ago
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