3 years ago

What are the solutions of the system 7x + 3y=-3 and y= -2*?

Mathematics

1 answer:

mafiozo [28]3 years ago

8 0

Answer:

opt 4

Step-by-step explanation:

when x=0, 0+3y= -3, so y=-1 (0,-1) is solution

when x=3 , 21+3y=-3, 3y= -3-21= -24

y= -8 (3,-8) is also solution

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The Smith family has a circular garden with a diameter of 22 feet. They cover the garden with mulch. The cost of the mulch is $1

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Answer: 27.5

Step-by-step explanation:

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2 years ago

(50 POINTS AND BRAINLIEST!)

topjm [15]

Answer:

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3 years ago

6. A prism has bases that are equilateral triangles with sides lengths of 10 inches and a length of 30 inches.

vova2212 [387]

Answer:

The volume of the prism is $1,299\ in^{3}$

Step-by-step explanation:

we know that

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where

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L is the length of the prism

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substitute

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4 0

3 years ago

If 10 pencils and 7 erasers cost $4.23 and 3 pencils and 1 eraser cost $0.95, what is the cost of 2 erasers?

QveST [7]

Answer: $0.58

Step-by-step explanation:

Let x represent pencil and y represent eraser

10x + 7y = 4.23 → 1(10x + 7y = 4.23) → 10x + 7y = 4.23

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-11x = -2.42

÷-11 ÷-11

x = 0.22

3x + y = 0.95

3(0.22) + y = 0.95

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y = 0.29

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3 years ago

How many times does 27 go into 324

Leona [35]

324 divided by 27 is 12.

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2 years ago