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4 years ago

Solve the following system of equations by using the substitution method.

1 answer:

6 0

-2x-3(6x-11)=-7
-2x-18x+33=-7
-20x+33=-7
-20x=-40
x=2

y=6(2)-11
y=12-11
y=1

You can check your work by plugging x and y back into the equations

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Goshia [24]

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v=l*b*h

=8cm*3cm*13cm

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3 years ago

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Which of the following are solutions to the quadratic equation? Check all that apply x^2 + 12x + 36 = 7

garik1379 [7]

Answer:

x = -6 + $\sqrt{7}$ , x = -6 - $\sqrt{7}$

Step-by-step explanation:

(x + 6)² = 7

x + 6 = + or - $\sqrt{7}$

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3 years ago

Please help because no one been answering my questions

never [62]

Answer:

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Step-by-step explanation:

$\sin(45) = \frac{opposite}{hypotenuse}$

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3 years ago

In a reapeating musical pattern, there are 56 beats in 7 measures

anygoal [31]

Answer:

You will need to find the number of measures per beat (it will be a fraction): 7/56=0.125 Then, you multiply that by 104: 0.125x104=13 This means that there will be 13 measures after 104 beats.

Step-by-step explanation:

104 beats is multiplied with the decimal of the fraction of beats and measures which means it has been used with whole numbers

0.125 is not a whole number we know x 100 is 12.5 and we know x4 is 0.5

When we work with the first 4 multiples we can usually spot whether it would take more than 4 to round figure it to 0.5 to add to 12.5

There are 3 digits as decimals and x 100 quantifies. just by adding 4 to x100 to each of them until a whole number found 12.5 + 0.5 = whole number = 13.

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3 years ago

It was wartime when the Ricardos found out Mrs. Ricardo was pregnant. Ricky Ricardo was drafted and made out a? will, deciding t

ElenaW [278]

Answer:The girl will get $2,000, the mother $4,000 and the boy $8,000

Step-by-step explanation:

f the amount the girl gets = x

The mother gets twice as much as the girl = 2x

And the boy get twice as much as the mother = 4x

Overall

x + 2x + 4x = $14,000

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Divide both sides by 7 so

x=$2,000

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3 years ago