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2 years ago

4 students is 20% of 20 students is it correct

Mathematics

2 answers:

dezoksy [38]2 years ago

8 0

Yes ma'am it is correct

Zinaida [17]2 years ago

6 0

Correct. To find this answer you would make 4 out of 20 an equivalent expression to 100. 20*5=100 4*5=20, therefor 4 out of twenty is equal to 20 out of 100, or 20%.

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How much money does Carl earn per hour? Show your work. You will not receive full credit for a

Komok [63]

From the table showing in the diagram, Let's pick the data in the first row:

Time = 3 hours

Money earned = $45

The amount of money Carl earns per hour is calculated as:

3 hours = $45

1 hour = ?

Cross Multiply

1 hour x $45 / 3 hours

= $15

Let's confirm our answer using the data in the last column

Time = 10 hours

Money earned = $150

The amount of money Carl earns per hour is calculated as:

10 hours = $150

1 hour = ?

Cross Multiply

1 hour x $150 / 10 hours

= $15

Therefore, the amount of money Carl earns per hour is $15

To learn more, visit the link below:

brainly.com/question/1004906

3 0

2 years ago

Evaluate.

Daniel [21]

Answer:

d) 192

Step-by-step explanation:

Your calculator can do this for you.

Or, you can simplify to

$12\cdot\dfrac{4^{-2}}{4^{-4}}=12(4^{-2+4})=12(4^2)=192$

3 0

3 years ago

1,2,3

Darya [45]

1. scalene
2. rectangle or parallelogram
3. right triangle

8 0

2 years ago

Read 2 more answers

If a is an odd number, b is not divisible by 3 and LCM of a and b is P, what is the LCM of 3a and 2b?

Olenka [21]

Answer:

The LCM of 3a and 2b = 6P

Step-by-step explanation:

LCM of 3 a and 2 b will be 6 p

Since a is odd, which means it's not divisible by 2. Therefore a can be number 1, 3, 5, 7, 9, 11, .......

b is not divisible by 3, which means b can be number 1, 2, 4, 5, 7, 8, 10, 11, .....

LCM of a and b is P

Factors of 2b can be 2 multiplied by (1, 2, 4, 5, 7, 8, 10, 11, ..... )

Factors of 3a can be 3 multiplied by (1, 3, 5, 7, 9, 11, .......)

So, to get the LCM of 3a and 2b, since we already show the factors of a and b, Then, 3 X 2 X P (remember P is the LCM of a and b)

The LCM of 3a and 2b = 6P

3 0

3 years ago

Find x. Round your answer to the nearest tenth of a degree.

77julia77 [94]

This is the concept of trigonometry, the value of x will be calculated as follows;
sin theta=[opposite]/[hypotenuse]
theta=x
opposite=16 units
hypotenuse=21 units
thus;
sin x=16/21
hence;
x=arcsin(16/21)
x=49.63
x=50 (to the nearest degrees)

8 0

3 years ago

Read 2 more answers