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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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Answer:

8 x 10 ^0

Step-by-step explanation:

the reason why is because there is no 0 behind the 8 so the exponent could not say a number so it is just 0

7 0
3 years ago
PLEASE HURRY <br> What is the measure of M?<br> 52<br> Р<br> 78°<br> M
vodomira [7]

Answer:

50 degree

Step-by-step explanation:

the angle sum property of the equilateral triangle is =180 degree

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4 0
2 years ago
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Stels [109]

Answer:

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7 0
2 years ago
Jan needed to empty 18 gallons of water from a tub into jugs that hold 0.5 gallons of water. How many jugs did Jan need?
Ilia_Sergeevich [38]
So you would do,
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8 0
3 years ago
The product of two consecutive positive integers is 29 more than their sum. Find the integers
Rina8888 [55]
The consecutive positive integers would be: x and (x+1),
We would have to solve the following equation to find these numbers:
x(x+1)-[x+(x+1)]=29
x²+x-2x-1=29
x²-x-30=0
x=[1⁺₋√(1+120)]/2
x=(1⁺₋11)/2
We have two possible solutions:
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x₂=(1+11)/2=6    then: (x+1)=6+1=7    This solution is right.

Answer: the numbers would be 6 and 7. 
7 0
3 years ago
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