Answer: D
Step-by-step explanation:
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
To solve the two equations simultaneously using the substitution method we need to rearrange one of the equation to make either
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or
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the subject.
We can try in turn rearranging both equations and see which unknown term would have been easier to solve first
Equation
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Making
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the subject
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, dividing each term by 2
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⇒ (Option 1)
Making
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the subject
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, multiply each term by 8 gives
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⇒ (Option 2)
Equation
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Making
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the subject
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, divide each term by 3
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⇒ (Option 3)
Making
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the subject
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, divide each term by 8
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⇒ (Option 4)
From all the possibilities of rearranged term, the most efficient option would have been the first option, from equation
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with
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as the subject,
Answer:
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Step-by-step explanation:
Answer:
63360 inches in one mile so you can do the rest of the math
Answer:
Step-by-step Times each side and you will get you answer find your area