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3 years ago

7

What’s the answer to question 19?

1 answer:

vaieri [72.5K]3 years ago

3 0

The answer to your question is “B” I’m not 100% sure but I’m pretty positive

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Change the repeating decimal to a fraction:<br> 0.376376376...

taurus [48]

Answer:

Answer is 3/4

Step-by-step explanation:

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2 years ago

Name three different ways you can represent a group of equivalent ratios.

KonstantinChe [14]

One way is by using the same number

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3 years ago

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What percent of 47.9 is 11?<br> A)4.4%<br> B)435.5%<br> C)148%<br> D)23%

Arte-miy333 [17]

Answer:

4.4%

Step-by-step explanation:

47.9 divided by 11 is 4.3545454545...

Round the 4.35454545.. to the closest

This is 4.4 percent

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3 years ago

What is the value of x in the equation 7/8x 5/6

Kay [80]

The answer would be
x = 160/147
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3 years ago

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Use substitution to solve the following system of linear equations and fill in the following blanks:

marissa [1.9K]

Answer:

$x=-4$

$y=3$

$z=-5$

Step-by-step explanation:

<u>Given:</u>

$x+y+z=-6$

$x-6y-7z=-29$

$-7y-5z=4$

<u>Solve for </u> $x$ <u> in the 1st equation:</u>

$x+y+z=-6$

$x+y=-z-6$

$x=-y-z-6$

<u>Substitute the value of </u> $x$ <u> into the 2nd equation and solve for </u> $z$ <u>:</u>

$x-6y-7z=-29$

$(-y-z-6)-6y-7=-29$

$-7y-z-13=-29$

$-7y-z=-16$

$-z=-16+7y$

$z=16-7y$

<u>Substitute the value of </u> $z$ <u> into the 3rd equation and solve for </u> $y$ <u>:</u>

$-7y-5z=4$

$-7y-5(16-7y)=4$

$-7y-80+35y=4$

$28y-80=4$

$28y=84$

$y=3$

<u>Plug </u> $y=3$ <u> into the solved expression for </u> $z$ <u> and evaluate to solve for </u> $z$ <u>:</u>

$z=16-7(3)$

$z=16-21$

$z=-5$

<u>Plug </u> $z=-5$ <u> into the solved expression for </u> $x$ <u> and evaluate to solve for </u> $x$ <u>:</u>

$x=-(3)-(-5)-6$

$x=-3+5-6$

$x=2-6$

$x=-4$

Therefore:

$x=-4$

$y=3$

$z=-5$

6 0

3 years ago