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schepotkina [342]
2 years ago
10

Write the expression. Then, check all that apply.

Mathematics
1 answer:
MrRa [10]2 years ago
6 0

Step-by-step explanation:

twice the difference of a number and 6

2×(n - 6)

the correct options are

1.

3.

4.

5.

in other words : 2. and 6. are wrong, as there is no addition, and the expression has to be written with brackets to allow the subtraction to be done before the multiplication.

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Decreasing 3/4 times a number by 18 is equal to<br> increasing 1/5 times the number by 5.
Naya [18.7K]

Answer:

460/11, rounded to 41.8

Step-by-step explanation:

Let's say that our number is x. The first part states that we decrease 3/4 of a number by 18. Therefore, we find (3/4) of x and subtract that by 18, or (3/4)x-18. That is then equal to increasing (1/5) of x by 5, or (1/5)x+5. Our equation is then (3/4)x-18=(1/5)x + 5.

Adding 18 to both sides, we get (3/4)x = (1/5)x + 23.

Multiplying both sides by 5 and 4 (or 20 as a whole) to remove the denominators, we get that 15x=4x + 460. Subtracting both sides by 4x, we get that 11x=460, and dividing both sides by 11, our answer is rounded to 41.8 (or just 460/11)

Feel free to ask further questions

6 0
3 years ago
Pls someone number 8
raketka [301]

Answer:

3 7/8 liters of rice

Step-by-step explanation:

1 \frac{5}{8}  + 2 \frac{1}{4}

1 \frac{5}{8}  + 2 \frac{2}{8} = 3 \frac{7}{8}

8 0
3 years ago
True or false? If the slope of a regression line is positive, the correlation is negative.
Masja [62]

Hey there!

This statement is FALSE. The correlation would be positive

Hope this helps you!

God bless ❤️

Brainliest would be appreciated

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8 0
4 years ago
Read 2 more answers
HELP ME Answer it from the forst one to the last one with the rght answer please.This is Urgent so do it Faster if u now the ans
Marina86 [1]

Step-by-step explanation:

2) 63

3) 7000

4) 10

These are some answers

5 0
4 years ago
A gum ball machine has 100 red gum balls. If the red gum balls are 25% of the total number of gum balls, how many gum balls are
Morgarella [4.7K]

Answer:

400

Step-by-step explanation:

There are 100 red gumballs which take up 1/4 of the gumballs. If they are 1/4 of the gumballs that means in total there are 400 because 100 x 4 = 400

4 0
3 years ago
Read 2 more answers
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