3 years ago

What equation can I use to solve for x? What equation can I use to solve for y?

Mathematics

1 answer:

lbvjy [14]3 years ago

4 0

Answer:

125+9x-8=180

6x+13+6y+29=180

Step-by-step explanation:

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4 years ago

Parker ran 600 meters, 7 kilometers, and 1,000 centimeters.

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Please help!<br><br> Find the product AB, if possible. Explain if it's not possible.

soldi70 [24.7K]

Answer: c

<u>Step-by-step explanation:</u>

When multiplying matrices, multiply ACROSS with the left matrix and DOWN with the right matrix.

$\text{Example}:\left[\begin{array}{cc}a&b\\c&d\end{array}\right] \times \left[\begin{array}{c}x\\y\end{array}\right] =\left[\begin{array}{c}ax+by\\cx+dy\\\end{array}\right]$

$\left[\begin{array}{cc}5&2\\3&-1\end{array}\right] \times \left[\begin{array}{c}2\\3\end{array}\right] =\left[\begin{array}{c}5(2)+2(3)\\3(2)-1(3)\\\end{array}\right] = \left[\begin{array}{c}16\\3\end{array}\right]$

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3 years ago

Yuson must complete 45 hours of community service. She does 3 hours each day. Which linear equation represents the hours Yuson h

Daniel [21]

Answer:

y=45-3x

Step-by-step explanation:

we want y, which is the number of hours left. to find this, we take:

hours left=total # of hours required - hours worked/day

so:

y=45-3x

(because x could be any number: 2 days, 3 days, etc.)

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3 years ago