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ANEK [815]
3 years ago
15

WILL MARK BRAINLIEST IF CORRECT

Mathematics
1 answer:
RideAnS [48]3 years ago
7 0
The answer would be “D” because it’s is 4 less than 7j.
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What is solution 7x+5y=-24 and 4x+y=42?
LenKa [72]
7x+5y=-24 (1)
   4x+y=42 (2)

multiply equation (2) by 5 to get
20x+5y=210 (3)

then calculate (3)-(2) which gives you
13x=234 hence x=18
then substitute for x in either equation to get y=-30
6 0
3 years ago
Read 2 more answers
Y= 2x + 7 y= -4x - 5 What is the solution for the system of equations?
Oksi-84 [34.3K]

Answer:

x = -2, y = 3.

as an ordered pair it is (-2, 3).

Step-by-step explanation:

y= 2x + 7

y= -4x - 5

As both right hand expression are = y we have:

2x + 7 = -4x - 5

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x = -2

Substitute for x in equation 1:

y = 2(-2) + 7 = 3.

7 0
3 years ago
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A researcher computes a 2 x 3 factorial anova. in this example, how many interactions can be observed?
Ivan

 

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7 0
3 years ago
Nancy joined Movies Extraordinaire for a $8 fee and an agreement to pay $1.99 per movie she rents. The equation for her total co
Anna11 [10]
The answer is $57.75.

Step by Step:

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6 0
3 years ago
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Nady [450]

Answer:

7x^2 - 2x - 3.

Step-by-step explanation:

Starts with 7x^2  then a term in x then a constant.

4 0
2 years ago
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