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olganol [36]
3 years ago
6

-4x-2y=-12 4x+8y=-24

Mathematics
2 answers:
lutik1710 [3]3 years ago
5 0

Answer:

x = 6, y = -6

Step-by-step explanation:

-4x - 2y = -12

4x + 8y = -24   +

-----------------------

6y = -36

y = -36/6

y = -6

4x + 8y = -24

4x + 8*(-6) = -24

4x = -24 + 48

4x = 24

x = 6

geniusboy [140]3 years ago
5 0

Answer:

X=6

Y=-6

Sorry for no steps

Do you need them

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vodomira [7]

Answer:

m = 93 - h / b

Step-by-step explanation:

bm + h = 93

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m = 93 - h / b

Hope it helps ⚜

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A truck can be rented from Company A form ​$130 a day plus $0.30 per mile. Company B charges ​$50 a day plus $0.80 per mile to r
navik [9.2K]

Answer:

160 miles

Step-by-step explanation:

Company A form ​$130 a day plus $0.30 per mile

Company A = 130 + 0.30x

Company B charges ​$50 a day plus $0.80 per mile

Company B = 50 + 0.80x

Where,

x = number of miles

Equate the cost of company A and company B

130 + 0.30x = 50 + 0.80x

Collect like terms

130 - 50 = 0.80x - 0.30x

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Divide both sides by 0.50x

x = 80 / 0.50

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4 0
2 years ago
Helppppppppppppppppppppppppp
kumpel [21]
Answer:
x = 10

Explanation:
Note the following rules before we begin:
2 ln(a) = ln (a²)
ln (a) + ln (b) = ln (ab)

Now, for the given:
ln(20) + ln(5) = 2 ln(x)
ln(20*5) = ln(x²)
ln(100) = ln(x²)

This means that:
100 = x²
Therefore:
either x = 10 .........> acceped
or x = -10 .........> rejected as no negatives are allowed within ln functions

Hope this helps :)
5 0
3 years ago
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