Please hurry I’ve been doing school for 11 hours because I don’t wanna have any homework

Mathematics

2 answers:

Aleks04 [339]3 years ago

6 0

Answer:

25%

Step-by-step explanation:

10 - 8

Percent increase= ---------------------------- .100% = 25%

jeyben [28]3 years ago

6 0

The answer is 25% because 10-8 is 2 and 8 divided by 2 is 4 and 100 divided by 4 is 25, therefore 25% :)

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4 years ago

Is 8/5 proportional to 24/15 ?

DiKsa [7]

Hey there!

The answer to your question is, yes, it is

Given:

$\frac{8}{5}$ $and$ $\frac{24}{15}$

To see if they are equal, we can use cross products (see below for information about this, if you don't know what it is). Let us assume they are equal. This would mean that:

$8*15=24*5$

Let's solve it and see if it is true:

$8*15=24*5$

$120=120$

Therefore, they are proportional.

Cross products

WORD DEFINITION:

Given two fractions, you can take the numerator of the first fraction multiplied by the denominator of the second fraction and it should equal the denominator of the first fraction multiplied by the numerator of the second fraction.

ALGEBRAIC DEFINITION:

Given two fractions, $\frac{a}{b}$ $and$ $\frac{c}{d}$ , $a*d$ should equal to $b*c$