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Elena-2011 [213]

3 years ago

7

In this henrik's class, there are 10 boys and 12 girls. What is the ratio of boys to girls? Express your answer as a fraction in

simplest form.

1 answer:

Katen [24]3 years ago

8 0

5/6 is the simplest ratio

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The equations were multiplied by constants and added together to determine that the value of x in the system of equations is –20

Misha Larkins [42]

Answer:

Step-by-step explanation:

Given:

1. 1/5x - 1/3y = -1

2. -3/4x +1/3y = 12

Multiplying equation 1 by 15 and equation 2 by 12

3. 3x - 5y = -15

4. -9x + 4y = 144

and then Solving both equations simultaneously, since x = -20 as stated in the question and by confirmation,

Using equation 3 or 4 to solve for y,

3(-20) - 5y = -15

-5y = 60 - 15

y = 45/-5

= -9

y = -9

8 0

3 years ago

One number is 10 less than twice another. If their difference is 31, what is the larger number?

miv72 [106K]

Answer is in this image which is 72.

3 0

3 years ago

Uncle Tan harvested 24.9 tons of pears. He found that 22.41 tons of the pears were rotten pears. What percent of the harvested p

Serhud [2]

Hi there! The answer is 10%.
To find our answer we use the following formula:
$part / total \times 100 \%$

The percentage of rotten pears is
$\frac{22.41}{24.9} \times 100\% = 90\%$

Therefore
$100\% - 90\% = 10\%$
Of the pears are good pears.

6 0

4 years ago

Is j+j+j+j and j with the power of four equivalent?

spayn [35]

Answer:

No, they are not equivalent.

Step-by-step explanation:

j + j + j + j = 4j

j^4

Let's say j = 2

4j = 8

j^4 = 16

5 0

3 years ago

Read 2 more answers

I have no clue what it is

Orlov [11]

13.95+2.25+2.25+2.25+2.75+2.75+2.75= 28.95

6 0

3 years ago