2 years ago

Solve.

1 answer:

8 0

Try to subtitute y with 3x - 7
15x - 5y = 14
15x - 5(3x - 7) = 14
15x - 15x + 35 = 14
35 ≠ 14
The equation system doesn't have any solution

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213 is 30% of what amount

WITCHER [35]

Start by calling the unknown amount 'x'. We can then set up a relationship to represent the question:

$213 = (30\%) \times x$
or
$213=0.3x$

and then solve for x, by dividing both sides of our equation by 0.3

$\frac{213}{0.3}=\frac{0.3x}{0.3}$
$710=x$

213 is 30% of 710

To check: $710 \times 0.3 = 213$

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Translate the given phrase to an expression. Subtract 2/7 from 25/28. Do not simplify

erastova [34]

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it doesn’t need to be solved because it asked for an expression and not an equation, so no equal sign either

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Which could be the first step in simplifying this expression (x^3x^-6)^2

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If you follow PEMDAS
P-parentheses
E-exponent
M-multiplication
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hope this helps :)

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