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dlinn [17]
3 years ago
13

I need help with a question that has to do with Ratio and Proportion. I want to know how to do it, not just only the answer.

Mathematics
1 answer:
Tema [17]3 years ago
7 0

Answer:

y is = 15

please mark me as brainest

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Help help me plzzzzzzz
7nadin3 [17]

Answer:

1). 25% percentage increase

2). 75% percentage decrease

Step-by-step explanation:

1.

Percent \: of \: change =  \frac{amount \: of \: change}{original \: amount}  \times 100\%

Amount of change =30-24=6

Original amount = 24

Percent \: of \: change =  \frac{6}{24} \times 100\%

Percent \: of \: change =  \frac{1}{4} \times 100\% = 25\%

This means there is a percentage increase of 25%

2.

Amount of change =4-16=-12

Original amount=16

Percent \: of \: change =  \frac{ - 12}{16} \times 100\%

Percent \: of \: change = -   \frac{3}{4} \times 100\% =  - 75\%

This means there is a percentage decrease of 75%

5 0
3 years ago
1 rounded to the nearest ten do you round up or down
andrew11 [14]
You round down.
five or up you round up.
five or below you round down.
8 0
3 years ago
A system of equations has no solution. if y=8x+7
Black_prince [1.1K]
And y=8x+c where c≠7
or
8x-y=-c where c≠7
3 0
4 years ago
What is a vertices? How many vertices does a cube have?
navik [9.2K]
A single one of them is called a "vertex". It's a point where edges meet.
A triangle has 3 of them.
A square has 4 of them.
A cube or a brick has 8 of them.
Can you look around and find the 8 vertices of your bedroom ?
3 0
3 years ago
The next term of the square 3 by 1​
nadya68 [22]

9514 1404 393

Answer:

  (B)  1/27

Step-by-step explanation:

The terms of the sequence have a common ratio.

  (1/8)/(3/16) = (2/16)/(3/16) = 2/3

  (1/12)/(1/8) = (2/24)/(3/24) = 2/3

  (1/18)/(1/12) = 12/18 = 2/3

The next term will be ...

  (1/18)(2/3) = 2/54 = 1/27 . . . . matches choice B

5 0
3 years ago
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