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pickupchik [31]
3 years ago
11

Solve the system by elimination.

Mathematics
1 answer:
Misha Larkins [42]3 years ago
5 0

Answer:

x=-4, y=2. (-4, 2).

Step-by-step explanation:

5x+6y=-8

-2x+8y=24

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

2(5x+6y)=2(-8)

5(-2x+8y)=5(24)

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

10x+12y=-16

-10x+40y=120

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

52y=104

y=104/52

y=2

5x+6(2)=-8

5x+12=-8

5x=-8-12

5x=-20

x=-20/5

x=-4

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Answer:

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Step-by-step explanation:

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4 0
3 years ago
Jenny is cooking a chicken for dinner. A chicken needs to be cooked for 40 mins per kilogram, plus an extra 20 mins. How long wi
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3 years ago
Y= 4/5 x-7 what are the y and x intercepts?
solmaris [256]

The x intercept is (8.75, 0) and y - intercept is (0, -7)

<em><u>Solution:</u></em>

Given that we have to find the x and y intercepts

Given equation is:

y = \frac{4}{5}x - 7

The x intercept is the point where the line crosses the x axis

The y intercept is the point where the line crosses the y axis

<em><u>Finding x - intercept:</u></em>

To find the x-intercept of a given equation, plug in 0 for 'y' and solve for 'x'

Substitute y = 0 in given equation

0 = \frac{4}{5}x - 7\\\\\frac{4x}{5} = 7\\\\4x = 35\\\\x = \frac{35}{4} = 8.75

Thus x intercept is (8.75, 0)

<em><u>Finding y - intercept:</u></em>

To find the y-intercept, plug 0 in for 'x' and solve for 'y'

Substitute x = 0 in given equation

y = \frac{4}{5} \times 0 - 7\\\\y = 0 - 7\\\\y = -7

Thus y - intercept is (0, -7)

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4 years ago
DOL: How does dividing integers relate to<br> multiplying integers?
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Answer:

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Step-by-step explanation:

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Read 2 more answers
Solve the equation. 11 = –d + 15 A. 4 B. 6 C. 11 D. –4
xxMikexx [17]

11 = -d+15

subtract 15 from each side

-4 = -d

 divide both sides by -1

d = 4

8 0
3 years ago
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