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dimaraw [331]
3 years ago
10

Solve by Substitution: 3x - y = 4 y = 6 - 2x

Mathematics
1 answer:
atroni [7]3 years ago
4 0
Substitute 6 - 2x for y in the first equation

3x - (6 - 2x) = 4

5x - 6 = 4

5x = 10

x = 2

Plug 5 for x in either equations (I'll use the second equation)

y = 6 - 2 * 2

y = 6 - 4

y = 2

(2,2) is the solution.
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LUCKY_DIMON [66]

Answer:

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Step-by-step explanation:

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2 years ago
population growth problem: the deer population in georgia was 450,000 in 2010, and the population doubles every 5 years. in what
VikaD [51]
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8 0
2 years ago
Kate borrowed $400 from her friend. She will repay this amount plus 3 percent simple interest after one year. What is the total
tekilochka [14]
The answer is $412.

Let's first calculate simple interest. Simple interest (I) can be expressed as:
I = P * r * t
P - principal
r - rate
t - time period

It is given:
I = ?
P = $400
r = 3% = 0.03
t = 1 year

Therefore:
I = P * r * t = 400 * 0.03 * 1 = 12

The total amount Kate will repay is the principal amount (P) plus 3% simple interest (I):
P + I = 400 + 12 = $412
6 0
3 years ago
How many solutions does this equation have?
user100 [1]
One solution

Hgyugyhvd
6 0
2 years ago
Read 2 more answers
What is the slope of the line passing through the points A(-2,-3) and B(6,4) ?
Ostrovityanka [42]

Answer:

Slope is the change in y over the change in x.  Just subtract and simplify the fraction.

Step-by-step explanation:

(-3 - 4)

______

(-2 - 6)

3 0
3 years ago
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