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Sonbull [250]
3 years ago
14

The ratio of boys to girls in the freshman class is 2 : 3. If there are 120 boys in the class, how many are girls? *

Mathematics
1 answer:
alukav5142 [94]3 years ago
6 0
180 is the answer to the question
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The formula for a volume of a cylinder is V= pi r squared h/3. solve the equation for h, or height. PLZ help ASAP
Diano4ka-milaya [45]

Answer:

h=3V/πr²

Step-by-step explanation:

  • V= πr²h/3
  • πr²h=3V
  • h=3V/πr²
8 0
3 years ago
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Simplify the expression below.
Alex
Hopes this helps:

Answer: B. x^8y^8

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6 0
3 years ago
Help me on this one please
sashaice [31]

Answer:

I believe the answer would be 3, and 7.

Step-by-step explanation:

Here's why to start off (x-3)(x-7)=0

What would you plug into x to make it 0, well x=3, and x=7, because 3-3=0, 7-7=0


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6 0
3 years ago
The density of silver is 10.5 g/cm. Find the volume of a silver bar if it’s mass is 950 g.
denis-greek [22]

Answer: The volume is 90.47 cm^{3}

Step-by-step explanation:

1. To solve this problem you need to use the formula for calculate the density, which is shown below:

d=\frac{m}{V}

Where m is the mass and V is the volume.

2. You must solve for the volume, as following:

V=\frac{m}{d}

3. Now, you must substitute the values of the mas and the density, which are given in the problem. Therefore, you have:

V=\frac{950g}{0.5g/cm^{3}}\\V=90.47cm^{3}

7 0
3 years ago
Morty buys and sells computer parts
mart [117]

Answer:

  • <em>1. Morty's total cost for the items he purchased was </em><u><em>$210</em></u>
  • <em>2. Morty's revenue from the sale of the items was </em><u><em>$547</em></u>
  • <em>3. Morty's Total profit was </em><u><em>$337</em></u>

<em />

Explanation:

The complete question is:

<em>Morty buys and sells computer parts. He bought two monitors for $25 each and later sold them for $88 each. He bought four cases for $15 each and later sold them for $24 each. He bought five memory modules for $20 each and later sold them for $55 each.</em>

<em />

  • <em>Morty's total cost for the items he purchased was</em>
  • <em>Morty's revenue from the sale of the items was</em>
  • <em>Morty's Total profit was </em>

<em />

<h2><em>Solution</em></h2>

<em />

<u><em>1. Morty's total cost for the items he purchased was</em></u>

<em />

Build a table with the number of parts and their costs:

Component         Amout    Unit cost  Total cost

                                               $                 $

Monitors                2             25                50

Cases                     4             15                 60

Memory                  5             20               100

Total cost = $50 + $60 + $100 = $210

<u><em>2. Morty's revenue from the sale of the items was</em></u>

<em />

Build a table with the number of parts and their selling prices:

Component         Amout    Unit price  Total cost

                                               $                 $

Monitors                2              88               176

Cases                     4              24                96

Memory                  5             55              275

Total revenue: $176 + $96 + $275 = $547

<u><em>3. Morty's Total profit was </em></u>

<em />

The total profit is the total revenue less the total cost: $547 - $210 = $337.

8 0
4 years ago
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