Mrs. ciampa had 27 students In her class last year and this year she had 30 students in her math class. What is the percent of change?

Answers

Answer 1

Answer:

The percent of change in the class of Mrs. Ciampa who has 27 students In her class last year and 30 students this year in her math class is 11.11%.

What is percentage increase ?

Percentage increase is the amount added to the initial value in the percentage part.

Mrs. Ciampa had 27 students In her class last year. This year she had 30 students in her math class.

Thus, the percentage change or increase of the student in her class is,

$p=(30-27)/(27)*100\np=11.11\%$

The percent of change in the class of Mrs. Ciampa who has 27 students In her class last year and 30 students this year in her math class is 11.11%.

Learn more about the percentage increase here;

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Answer 2

Answer:

10%

Step-by-step explanation:

3 more students this year

3/30 reduced= 1/10 or 10%

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Calculate the area of the composite figure, which is not drawn to scale.

Answers

The total area of the composite figure will be equal to 488 square meters.

What is an area?

The space occupied by any two-dimensional figure in a plane is called the area. Here we have two figures a rectangle and a right-angle triangle.

We have the following data:-

Rectangle L = 22 cm
Rectangle w= 17 cm
Triangle B= 19 cm
Trinagle H= 22-10= 12 cm

Total area = Area of rectangle + Area of triangle

Total area = (L x W) + (1 / 2)[ B x H]

Total area = ( 22 x 17 ) + (1 / 2)[ 12 x 19 ]

Total area = ( 374 + 114 ) = 488 sq2uare meters

Therefore the total area of the composite figure will be equal to 488 square meters.

To know more about the area follow

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First, I would multiply 17cm by 22cm to get 374, which is the area of the rectangle. Then to find the area of the triangle, I would multiple 12cm by 19cm and the divide that by half to get 114. I would then add 374+114 to get 488cm as your answer.

How many inches are in 20ft

Answers

If there are 12 inches in one foot we can simply say 12 multiplied by 20 to give your answer. 12*20=240 inches

there are 240 inches in 20 feet

Jamar earned $2,500 from his summer job. This is 350 more than twice what his friend Todd earned. Please write the equation for this problem.

Answers

2500 = 2x + 350
2500 - 350 = 2x
2150 = 2x
2150/2 = 2x/2
1025 = x
x = $ Todd had earned

3.78 divided by 0.9

Answers

Answer:

4.200

Step-by-step explanation:

Change the divisor 0.9 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.

We then have the equations:

37.8 ÷ 9 = 4.200

and therefore:

3.78 ÷ 0.9 = 4.200

Both calculated to 3 decimal places.

Final answer:

The division of 3.78 by 0.9 equals 4.2 after rounding to the nearest tenth. The given problem is an arithmetic division question typically encountered in mathematics. The keyword 3.78 is the number being divided by 0.9.

Explanation:

The division question posed: 3.78 divided by 0.9, is a simple arithmetic problem. To solve, we will perform the division calculation directly. First, we divide 3.78 (the dividend) by 0.9 (the divisor). This yields a quotient of approximately 4.2. Thus, 3.78 divided by 0.9 equals 4.2 when rounded to the nearest tenth. This division problem would be typically encountered in arithmetic, a branch of mathematics that deals with numbers and numerical computation.