3 years ago

What is an easier way to solve algebraic expressions?

1 answer:

3 0

Remove parentheses by multiplying factors.use exponent rules to remove parentheses in terms with exponents.combine like terms by adding coefficients.combine the constants

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What is the ratio a:b if 8a=3b?

Digiron [165]

The ratio a:b is 3:8

Step-by-step explanation:

In simple words, the ratio a:b means the fraction a/b.

So we will have to solve the given equation for a/b

Given

$8a=3b$

Dividing both sides by 8

$\frac{8a}{8}=\frac{3b}{8}\\a=\frac{3b}{8}$

Dividing both sides by b

$\frac{a}{b}=\frac{3b}{8*b}\\\frac{a}{b} =\frac{3}{8}$

The ratio a:b is 3:8

Keywords: Ratios, Fractions

Learn more about ratios at:

#LearnwithBrainly

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3 years ago

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Ivan

Answer:

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Step-by-step explanation:

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Reasoning Kareem cannot decide which of two washing machines to buy. The selling price of each is $720. The first is marked down

Marina CMI [18]

Answer:

store one

Step-by-step explanation:

Store One:

$720(0.50)=$360

$720-$360=$360

Store Two:

$720(0.30)=$216

$720-$216=$504

$504(0.20)=$100.8

$504-$100.8=$403.2

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3 years ago

At this weekend’s soccer game, 20 out of the first 50 people who entered the field were not wearing hats. If this sample is repr

Sedbober [7]

Answer:

150 people

Step-by-step explanation:

20/50 = 40%
So 40% are wearing hats and 60% aren't

0.6=60%

250x0.6= 150

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3 years ago

4x + 3 < 3 OR 4x + 3 > 19

JulijaS [17]

$4x + 3 > 19$

Step-by-step explanation:

$4x + 3 > 19 \\ 4x + 3 - 3 > 19 - 3 \\ 4x > 16 \\ 4x \div 4 > 16 \div 4 \\ x > 4$

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3 years ago