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Ad libitum [116K]
3 years ago
6

Substitution Y=-4x X=y-15

Mathematics
1 answer:
Mumz [18]3 years ago
4 0
Answer: (-3,-4x)

Solve for the first variable in one of the equations, then substitute the results into the other equation.
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Translate the sentence and solve: "4 is 2 less than double a number".
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Answer: x = 3

Step-by-step explanation:

you would double each number meamong multiply by 2 until you get the opposite of 4 being 2 less of a number so 6.

3 x 2 = 6

and 2 less than 6 is 4 so theres your answer :)

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3 years ago
Marking as brainliest
n200080 [17]

Answer:18

Step-by-step explanation:

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8 0
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Two friends are training for the marathon. Shaneese runs 100 miles per week, give or take 5 miles. Denasia runs 20 miles per wee
Svetach [21]

Answer:

give or take 5 miles.

Step-by-step explanation:

im not shor but that is true about the both of them

7 0
3 years ago
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John bought a video game that was 20% off. The game was originally $30. How much money DID HE SAVE by getting it on sale?
geniusboy [140]

Answer:

$6

Step-by-step explanation:

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7 0
3 years ago
A perpetuity pays $50 per year and interest rates are 9 percent. How much would its value change if interest rates decreased to
PtichkaEL [24]

Answer:

We conclude that its value change for 277.8$.

Step-by-step explanation:

We know that a perpetuity pays $50 per year and interest rates are 9 percent.  We calculate how much would its value change if interest rates decreased to 6 percent. We know that

9%=0.09

6%=0.06

We get

\frac{50}{0.09}=555.5

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Therefore, we get 833.3-555.5=277.8

We conclude that its value change for 277.8$.

4 0
3 years ago
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