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viva [34]
3 years ago
12

There are 30 computers in the media lab there are 4 activity booklets for every 2 computers in the media lab.

Mathematics
1 answer:
AURORKA [14]3 years ago
7 0

Answer:

There are 60 activity booklets in the media lab.

Step-by-step explanation:

- 30/2 = 15

Why divide those numbers?

For every 2 computers in a lab with 30 computers means you have to divide

- 15x4 = 60

Why multiply those numbers?

4 activity booklets for every 2 computers in a lab of 30 computers, so multiply

I hope this helps.

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A number cube is rolled 120 times. The number 4 comes up 47 times. What is the experimental probability of rolling a 4? What is
anzhelika [568]

A number cube is rolled 120 times. The number 4 comes up 47 times.

We have to determine the experimental probability of rolling a 4.

The formula to evaluate probability of an event is given by:

Probability  = \frac{Favourable outcomes}{Total outcomes}

So, Probability of rolling a 4 = \frac{ Total number of times when 4 appears}{Total number of times number cube rolled}

= \frac{47}{120}

Now, we have to find the theoretical probability of rolling a 4.

Total number of outcomes of number cube = {1,2,3,4,5,6}

Probability of rolling a 4 = \frac{1}{6}

So, Option B is the correct answer.

5 0
3 years ago
Read 2 more answers
Graham carves a block of wood shaped like a cube with a square pyramid on top. How much paint will Graham need to paint the toy?
34kurt

Divide the box into two parts for easy way answer

For cube:-

  • Side=a=12cm

TSA

  • 6a²
  • 6(12)²
  • 6(144)
  • 864cm^2

Cancel one side area

  • TSA=864-144=720cm^2

For triangular pyramid:-

Area of one base

  • 0.5(Base)(Height)
  • 0.5(12)(15)
  • 6(15)
  • 90cm^2

Area of four sides=90(4)=360cm^2

<h3>Total surface area:-</h3>

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4 0
2 years ago
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If the measure of 1 is x and the measure of &lt;2 is x+50, what is the measure of &lt;4?
marin [14]

Answer:

Measure of angle 4 is 115°

Step-by-step explanation:

First, we want to find the measure of angle 2, because the measure of angle 2 is equal to angle 4. When 2 straight lines cross each other, the angles formed are always equal to the angle right across from it.

Find angle 2 by setting up an equation:

x+x+50=180

This is basically saying that angle 1 plus angle 2 equals 180°. In a half turnaround, the angle is 180°. Angle 1 and 2 make up a half turnaround.

Solve the equation:

x+x+50=180

Combine the 2 x's to get 2x.

2x+50=180

Subtract 50 from both sides.

2x=130

Divide both sides by 2.

x=65

Since x=65, plug 65 into x in the measure of angle 2 (x+50).

65+50=115.

Since Angle 2 is equal to angle 4, angle 4 is also 115.

7 0
2 years ago
Help me and you will have amazing luck please help
vovangra [49]

Answer:

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Step-by-step explanation:

It might be wrong tho sorry

7 0
3 years ago
The population of a city increases by 4,00 people each year. in 2025 the population is projected to be 450,000 people. what is a
Sedbober [7]
P=4x+40.......................................
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