Is substitutions the best method to use when one variable is already known

2 answers:

8 0

There’s two ways to substitute, but i think you mean if you know x but don’t know y. if that is true, then yes use substitution

Mama L [17]2 years ago

7 0

Substitution Method is used for solving equations in 2 Variables, where you find the value of one variable in terms of the other and then substitute that value into any one of the equations. It can also be used when one Variable is known to you and you have to find the other.

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8090 [49]

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8 0

3 years ago

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PilotLPTM [1.2K]

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Step-by-step explanation:

7 0

3 years ago

Paige invested 1200 at an interest rate of 5.75% compounded quarterly. Determine the value of her investments in 7 years.

iragen [17]

Use the formula A=p(1+r)^n
where
A= value of investment
r= rate
n= time period
p= amount invested
in this question
r= 5.75% but compounded quarterly means divide this by 4
r= 23/1600
n=7*4
n=28
p= $1200
A=1200(1+23/1600)^28

A= $1789.54

Therefore the value of her investment in 7 years is $1789.54

4 0

3 years ago

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This is the order....