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Furkat [3]
3 years ago
15

3. Solve these systems of equations by the substitution method.

Mathematics
1 answer:
kifflom [539]3 years ago
8 0

Answer:

Y=2

X=-1

Step-by-step explanation:

In substitution method we have to put the value of one variable from first equation to the another given equation.

here equation are

x=3y-7     ......a

4x+3y=2   .......b

put the value of x from equation first into the second equation

so, 4(3y-7)+3y=2

     (12y-28)+3y=2

     15y-28=2

     15y=2+28

     15y=30

or    y=30/2=2

now put this y value in equation a

x=3(2)-7

x=6-7=-1

hence y=2 and x= -1

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strojnjashka [21]

Answer:Fractions Word Problems – Grade 8

Solve these on a separate sheet of paper.

The following word problems may require you to add, subtract, multiply or

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Read each problem carefully to choose the correct operation. Some of

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1. The girl’s hockey team won 6 games, lost 3 games, and tied 2 games. What

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2. In a full set of permanent teeth, ¼ of the teeth are incisors, ¼ are premolars,

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6. Shane has a piece of rope that is 7 4/5 units long. If he cuts it into pieces that

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7. About

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3

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of these girls

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5 0
3 years ago
PLEASE HELP ME I NEED HELP
GarryVolchara [31]

Answer:

13 is c

Step-by-step explanation:

to find the  length of a diagonal, pretend as if you are finding the hypotenuse of a triangle.

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4 years ago
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Carrie is buying bulk candy for a high school fundraiser. She buys 1000 candy bars for $350. What is the unit cost per candy bar
liubo4ka [24]
1000 candy bars ... $350
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If you would like to know what is the unit cost per candy bar, you can calculate this using the following steps:

1000 * x = 350 * 1
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x = 350 / 1000
x = $0.35

Result: She can buy 1 candy bar for $0.35, so the correct result would be B) $.35.
6 0
4 years ago
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