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Simora [160]
3 years ago
10

W = 3x + 7y solve for y

Mathematics
1 answer:
mario62 [17]3 years ago
8 0

Answer:

The value of the equation y=\frac{W-3x}{7}.

Step-by-step explanation:

Consider the provided equation.

W = 3x + 7y

We need to solve the provided equation for y.

Subtract 3x from both side.

W-3x= 3x-3x+ 7y

W-3x=7y

Divide both sides by 7.

\frac{7y}{7}=\frac{W-3x}{7}

y=\frac{W-3x}{7}

Hence, the value of the equation is y=\frac{W-3x}{7}.

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Solve for each expression by writing the solution in unit form and in standard form.
Sonja [21]

Answer:

<em>Unit Form:</em>

  • <em>3 hundreds, 0 tens, 0 ones</em>
  • <em>5 thousands, 0 hundreds, 0 tens, 0 ones</em>
  • <em>9 thousands, 0 hundreds, 0 tens, 0 ones</em>
  • <em>7 ten thousands, 0 thousands, 0 hundreds, 0 tens, 0 ones</em>

<em>Standard Form:</em>

  • <em>300</em>
  • <em>5,000</em>
  • <em>9,000</em>
  • <em>70,000</em>

Step-by-step explanation:

Here is how to write solutions to expressions in unit form:

Its important to note that unit form expands a standard form number into ones, tens, hundreds, and so on.

Take your first expression for example.

10 × 3 tens

Re-write this expression so that all terms are in standard form. The second term is <em>3 tens,</em> which can be represented as thirty.

10 × 3 tens

10 × 30

Solve this expression. Multiply ten by thirty.

10 × 30

300

The expression is now represented in its simplest form. We can start to write it in unit form. Break up three hundred into its hundreds, tens, and ones.

300

3 hundreds, 00

3 hundreds, 0 tens, 0

3 hundreds, 0 tens, 0 ones

This shows that the solution to the first expression written in unit form is <em>3 hundreds, 0 tens, 0 ones.</em>

We can continue to solve the following expressions in the same manner. Just in case you still need some help. Here is how you find the remaining three solutions in unit form.

<em>Problem Two</em>

5 hundreds × 10

500 × 10

5,000

<em>5 thousands, 0 hundreds, 0 tens, 0 ones</em>

<em>Problem Three</em>

9 ten thousands ÷ 10

90,000 ÷ 10

9,000

<em>9 thousands, 0 hundreds, 0 tens, 0 ones</em>

<em>Problem Four</em>

10 × 7 thousands

10 × 7,000

70,000

<em>7 ten thousands, 0 thousands, 0 hundreds, 0 tens, 0 ones</em>

Here's how to solve the second part of the problem:

This portion says we need to write the solution in standard form. It is important to remember that a number written in standard form will looks like an ordinary number, i.e. 76, 902, 474.

This means that under the category titled '<em>standard form'</em> we must write the answer as the ordinary solution.

8 0
4 years ago
-6x - 10 y=-12<br> -12x - 20 y=-24
EleoNora [17]

Answer:

minus x minus y and you get your answer

7 0
3 years ago
Please help me solve the problem. Thank you
Afina-wow [57]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The first attachment shows the rectangles with the area inside and the width on the right. The synthetic division of area by width gives the polynomial coefficients for length. The lengths are marked above the rectangles. The synthetic division is shown the 2nd and 3rd attachments.

3 0
2 years ago
Please help me ASAP PleSe
wolverine [178]
-18 i dont really know but
4 0
3 years ago
Lucy receives 28 dollars a night for babysitting. She also had 135 dollars in
iragen [17]
Answer is d. 135+28n=275
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