MATHEMATICS MIDDLE SCHOOL

The ratio of girls to boys in the grade is 9 to 11. If there are 135 girls, how many boys are there?

Answers

Answer 1
Answer:

There would be 165 boys in the grade.

I got this because I did 135/9. I got 15. Then I multiplied 11*15.
Answer 2
Answer:

There is 165 boys. Multiply both sides by 15 to get an equal ratio

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A number is chosen at random from 1 to 10.Find the probability of not selecting a multiple of 3.

Answers

the probability is 9/10 or 90%
First, you need to figure out how many of the numbers are multiples of 3. The numbers 3, 6, and 9 are all multiples of three, so three numbers are thrown out of the probability. 

There are now 7 numbers left. Your probability is out of ten, so there is a 7/10 of a chance to  not  pull a number that is a multiple of 3.

There were 28 white ducks swimming in a pond.Twice as many brown ducks flew in and landed in the pond.
Then half of the white ducks flew away.
How many ducks remained in the pond?

Answers

28×2=56
28/2=14
56+14= 70
there is 70 ducks in the pond 

Evaluate the expression when x = 2

Answers

the answer is 1 when x=2

there tiger barbs in a 15 gallon aquarium and giant dani is in a 30 gallon aquarium.what numerical expression to represent the greatest total number of fish that could be in both aquariums.

Answers

The numerical expression that represents the total number is parentheses 15 divided by 3 plus parentheses 30 divided by 5

A retail shop is replacing their flooringwith laminate wood. The floor plan is shown
below. Determine the total square feet of
laminate wood needed to complete the the job.
25 ft
8 ft
5 ft
25 ft
35 ft

Answers

Answer:

1075 ft^2

Step-by-step explanation:

The figure shows two rectangles. In order to get the two areas, we should be able to find the area of each and add them together.

The formula of the area of the rectangle = L * W

First rectangle = 25 * 8 = 200

Second rectangle =  25 * 35 = 875

Adding them together would yield 1075 sq ft.

Hope this helps

How many times greater is the value of the 5 in 150,740 than the value of the 5 in 10,452?

Answers

1,000 greater is the value of the 5 in 150,740 than the value of the 5 in 10,452.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Division means the separation of something into different parts, sharing of something among different people, places, etc.

The numbers are 150,740 and 10,452.

Then the value of 5 of each number will be

50,000 and 50

Then the ratio of the number will be

⇒ 50,000 / 50

⇒ 1,000

Then 1,000 greater is the value of the 5 in 150,740 than the value of the 5 in 10,452.

More about the Algebra link is given below.

brainly.com/question/953809

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