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zalisa [80]
3 years ago
9

Use the substitution method to solve the system of equations. Choose the correct ordered pair.

Mathematics
1 answer:
Alika [10]3 years ago
5 0

Answer:

A

Step-by-step explanation:

substitute the x for 9

y = 3(9) - 4

multiply 3 and 9

y = 27 - 4

subtract 4 from 27

y = 23

it has to be a because it is the only one with 23 as the y

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The rectangle is three times its width.
Airida [17]

Answer:

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Step-by-step explanation:

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Length of rectangle

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80= 2(3x) +2(x)

80= 6x +2x

8x= 80 <em>(</em><em>simplify</em><em>)</em>

x= 80 ÷8 <em>(</em><em>÷</em><em>8</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

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7 0
3 years ago
Figure a is a scale image of figure b. what is the value of x? please answer asap!
emmainna [20.7K]

<em>Greetings from Brasil...</em>

According to the statement, one figure is scaled in relation to another, so we can apply similarity to polygons.....

So

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OR

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8 0
4 years ago
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zhannawk [14.2K]

Answer:

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Step-by-step explanation:

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Now, \frac{15p^{-4}q^{-6} }{- 20p^{-12} q^{-3}}

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{Since we know the property of exponent as \frac{a^{b} }{a^{c} } = a^{(b - c)}}

= - \frac{3}{4} p^{8} q^{-3}

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{Since we know, a^{-b} = \frac{1}{a^{b} }}

3 0
3 years ago
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Greeley [361]
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Answer:14

Step-by-step explanation:

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