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nikitadnepr [17]
3 years ago
15

Write the equation of the line that is parallel to the graph of 3x − y = 5, and whose y-intercept is (0, -7).

Mathematics
1 answer:
zzz [600]3 years ago
4 0

Answer:

y = 3x -7

Step-by-step explanation:

If you use the y = mx + b formula for a line, you know m = 3 because the question says the line is parallel so it must have same slope. In this formula, b is the y intercept and it's already given as -7. Therefore, y = 3x -7.

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Brad says that if a second number is 125% of the first number, then the first number must be 75% of the second number. Is he cor
olga55 [171]

Answer: He is not correct.

Steps:

Let x1 and x2 be the first and second number, respectively.

x_2 = \frac{5}{4}x_1\\\frac{4}{5}x_2 =x_1

In words, if the second is 125%, or 5/4 of the first number (first equation),

then the first is 4/5 of the second, which is 0.8 or 80%.

8 0
3 years ago
A grocery store normally sells lemonade for $3.50 per bottle grocery store is currently having a sale on lemonade which advise s
anygoal [31]

Answer:

7.50 cheaper than buying individually

Step-by-step explanation:

13.50/6=2.25

3.50*6=21.00

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5 0
3 years ago
Which ordered pale is a solution to the system of equations?
Softa [21]

Answer:

c) (-2, 1)

Step-by-step explanation:

3x - 3y = -9

2x + y = -3

2x + y = -3

-2x       -2x

y = -2x - 3

3x - 3y = -9

y = -2x - 3

3x - 3(-2x - 3) = -9

3x + 6x + 9 = -9

9x + 9 = -9

    - 9    -9

9x = -18

/9     /9

x = -2

y = -2x - 3

y = -2(-2) -3

y = 4 - 3

y = 1

(x, y) --> (-2,1)

Check your answer:

y = -2x - 3

1 = -2(-2) - 3

1 = 4 - 3

1 = 1

This statement is true

Hope this helps!

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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