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lisabon 2012 [21]
2 years ago
15

Solve the system of equations using the elimination method. 2x - 3y = 50; 7x + 8y = -10

Mathematics
2 answers:
Sonbull [250]2 years ago
5 0

Answer:

See the picture and u will get the answer

Klio2033 [76]2 years ago
3 0

Answer:

x=10

y=-10

Step-by-step explanation:

multiply first row by 7

14x−21y=350

​7x+8y=−10

multiply second row by 2

14x−21y=350

​14x+16y=−20

subtract the first row by the second row

−37y=370

solve for y

y=−10

substitute y=-10

14x−21×−10=350

solve for x

x=10

and thats your answer

x=10

y=-10

​

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Dominik [7]

Answer:

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2 ans 4

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because if x equals zero then its basic arithmetic

4 0
3 years ago
Sixty percent of what number is equal to 45 percent of 80?
Dovator [93]

Answer:

60

Step-by-step explanation:

60% * x = 45% * 80

Changing to decimal form

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3 years ago
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Rename 600,000= ten thousands
lyudmila [28]

For this case we have the following number:

600,000

We can rewrite this number as the product of two numbers.

We have then, mathematically:

600,000 = 60 * 10,000

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Answer:

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3 years ago
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Ierofanga [76]

Answer:

<u>The probability of winning three games in a row is 1/64 or 1.6%</u>

Step-by-step explanation:

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3 years ago
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