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3 years ago

HELPP ILL GIVE BRAINLIEST IF ITS RIGHT HELP HELP

Mathematics

2 answers:

Nastasia [14]3 years ago

7 0

Answer:

A,C,B,E,G,F

Step-by-step explanation:

n mathematics, a rational number is a number such as -3/7 that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Every integer is a rational number: for example, 5 = 5/1.

also

The rational numbers includes all positive numbers, negative numbers and zero that can be written as a ratio (fraction) of one number over another. Whole numbers, integers, fractions, terminating decimals and repeating decimals are all rational numbers.

vredina [299]3 years ago

4 0

It’s F can I Get a Brainlist plz it will help answer ppl answers

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What is the value of x in the equation x - ty = 30, when y = 15?

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3 years ago

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Vaselesa [24]

Answer:

4:1 (I think)

Step-by-step explanation:

Let's write some equations first:

For both prices increasing by 20:

$\frac{x+20}{y+20} =\frac{5}{2}$

then we can use cross multiplication

2x+40=5y+100

For both prices decreasing by 5:

$\frac{x-5}{y-5} =\frac{5}{1}$

same here:

5y-25=x-5

Using substitution for 5y, we get: 5y=x+20

2x+40=5y+100

2x+40=x+20+100

x=80

plugging this in to the second equation:

5y-25=x-5

5y-25=80-5

5y-25=75

5y=100

y=20

therefore we get x:y=80:20

4:1

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3 years ago

Please Help Me ASAP I Need Real Help

alekssr [168]

I think it’s A. Hope it’s right. Sorry if it’s wrong.

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gladu [14]

Answer:

Step-by-step explanation:

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