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Komok [63]
3 years ago
14

Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y = 7. Multiply the first equa

tion by 4. Add the first equation to the second equation. Multiply the second equation by Negative 1. Subtract the second equation from the first equation.

Mathematics
2 answers:
____ [38]3 years ago
7 0

Answer:

just add the equation and solve it then the value of X could be found then put the value of X and the value of y can be found. Just like in the below

Step-by-step explanation:

X+y=3 ------------ equation 1

4x-y=7 ------------ equation 2

adding equation 1 and 2

X+y=3

+ 4x-y=7

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

5x = 10

X = 10/5

X = 2

putting the value of X in equation 1

or, 2+y=3

or, y = 3-2

Thus, y = 1

Ugo [173]3 years ago
5 0

Answer:

The answer is Add the first equation to the second equation.

Step-by-step explanation:

Got 100 on quiz on edge 2020

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In a class of students, the following data table summarizes how many students have a cat or a dog. What is the probability that
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The probability that a student who does not have a dog has a cat is 7/10.

<h3>What is the probability?</h3>

Probability determines the chances that a random event would happen. The odds that the random event would happen lies between 0 and 1.

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2 years ago
How far will the snail be from the rock after 9 minutes?
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27 inches <3

Step-by-step explanation:

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3 years ago
A principal of $2000 is placed in a savings account at 3% per annum compounded annually. How much is in the account after one ye
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Answer:

Step-by-step explanation:

After one year

A=p(1+r/n)^nt

=2000(1+0.03/12)^12*1

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After two-years

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After three years

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Answer:

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Step-by-step explanation:

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