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3 years ago

How can you use counters to show division and subtraction relationship

Mathematics

1 answer:

Sergio039 [100]3 years ago

3 0

Answer:

what grade are u in just need to know so I can help bc I dont understand the question

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A bag contains 120 marbles. Some are red and the rest are black. There are 19 red marbles for every black marble. How many red m

Georgia [21]

Well if every red marbles is 19, and the rest are black, we need to subtract 120-19. And that equals 101

3 0

3 years ago

Pls help! will mark branliest!!! :)

Ket [755]

The area of the house is the amount of space on the house.

The length of the addition is x + 20
The area of the original house is $x^2 + 30x + 200$

<h3>The length of the addition</h3>

The area of the addition is given as:

$Area = x^2 + 10x - 200$

Expand

$Area = x^2 + 20x - 10x - 200$

Factorize

$Area = x(x + 20) - 10(x + 20)$

Factor out x + 20

$Area = (x -10)(x + 20)$

The width of the addition is x - 10.

Hence, the length of the addition is x + 20

<h3>The area of the original house</h3>

The dimension of the original house is

x + 20 by x + 10

So, the area is:

$Area =(x + 20)(x + 10)$

Expand

$Area =x^2 + 20x + 10x + 200$

This gives

$Area =x^2 + 30x + 200$

Hence, the area of the original house is $x^2 + 30x + 200$

Read more about areas at:

brainly.com/question/24487155

8 0

2 years ago

Veronica randomly surveyed a group of students to find out how they arrived at school that

Finger [1]

Answer:A

Step-by-step explanation:

-Long way

1.) Add all the numbers of people together (60)

2.) Divide all the students aka.540 by 60. (9)

3.) Multiply 9 by all the numbers.

=Answer for all. (Double check)

-Mental math

1.) look at chart

2.) compare 8 and 7

3.) figure out which is larger.

=Answer of A

8 0

3 years ago

HELP ILL GIVE YOU BRAINLIEST ‼️‼️‼️‼️

Sladkaya [172]

Answer:

36 200 a-c = 36 for 200 and that is how it's done

5 0

4 years ago

Ez question i just want ppl to have brainlest Question 2(Multiple Choice Worth 4 points)

bazaltina [42]

Answer is 0.05. 2 people told me they were going to give me brainlest but didn’t so please give me brainlest

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3 years ago