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Bingel [31]
3 years ago
14

There are n apples in a box; this is 3/7 of all the fruits in it. How many fruits are there in the box? (n=21)

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
4 0

Answer:

49

Step-by-step explanation:

n is 3/7 of total fruit

n=21 apples

Here they are just telling us that the apples make up a total of 3/7 percent of the total fruit in the box. So to find the total amount of fruit from this information we just simply take the n number of apples and divide that by the percent that it represents. So basically just this;

n=21 and (n)/(3/7)=total fruit

(21)/(3/7)=21*7/3=147/3=49 total fruit and 21apples make up (3/7)% of the total fruit in the box.

Hope this helped some. Any questions please feel free to ask. Thanks!

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A triangle has sides with lengths of 9 kilometers, 12 kilometers, and 15 kilometers. Is it a right triangle?
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it is a right triangle i am positive

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3 years ago
Each serving of a cereal is 80 calories.which expression can be used to find the number of calories In 3 servings
valkas [14]

Answer:

80\times3

Step-by-step explanation:

Based on the given conditions, formulate:  80\times3

Calculate the product or quotient: 240

get the result: 240

Answer: 240

To find this answer, we had to use the expression 80 * 3, therefore making it the answer.

6 0
2 years ago
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P = -2p - 15<br><br> I need help plz. Thanks!
mihalych1998 [28]

Answer: p=−5

Step-by-step explanation:

Step 1: Add 2p to both sides.

p+2p=−2p−15+2p

3p=−15

Step 2: Divide both sides by 3.

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4 0
3 years ago
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Can Anybody Help me?
Leviafan [203]

Answer:

x=8, y=-1

Step-by-step explanation:

The figure is said to be a rectangle, which means opposite sides have to be equal in length. From this, we can write a system of equations:

5x-2y=42

2x+3y=13

There are a number of ways to solve this but I'll go with elimination--that means you need to try to remove one variable first by manipulating the equations and solve for the other variable. Then you use the solution to solve for the variable you initially removed. That sounds confusing, but let me show you how to do it.

If you multiply the first equation by 3 and the second equation by 2, you'll have have:

15x-6y=126

4x+6y=26

Now, we can add these two equations. The y will cancel out, so we can easily solve for x.

19x=152

x=8

Use this value of x to substitute back into either of the original equations to find y.

5(8)-2y=42

40-2y=42

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8 0
2 years ago
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How many 2-letter combinations can be created from the distinct letters in the word "mathematician"? Assume that the
Rzqust [24]

Answer:

Option A.

Step-by-step explanation:

The given word is "mathematician".

Here, total number of letter is 13 and  

Number of distinct letters = 8

We need to select 2 distinct letters from word "mathematician".

It means we need to select 2 letters from 8 distinct letters.

Total ways =^8C_2

=\dfrac{8!}{2!(8-2)!}

=\dfrac{8\times 7\times 6!}{2\times 6!}

=28

Therefore, the correct option is A.

4 0
3 years ago
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