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3 years ago

What is 18+ (8+4-9)= Please show step by step

Mathematics

2 answers:

8_murik_8 [283]3 years ago

5 0

Answer: 21

Reasoning:

nataly862011 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

PEMDAS

P- Parantheses

E- Exponents

M- Multiplication

D- Division

A- Addition

S- Subtraction

-------------------------

First in Pemdas is parantheses , so you add the 8+4 first because Addition is before subtraction. Which is three, next is 3+18. Which is 21.

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What is 30% of 8 cups?

uranmaximum [27]

Answer:

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\p\%=\dfrac{p}{100}\\\\30\%=\dfrac{30}{100}=0.3\\\\30\%\ of\ 8\ cups\to0.3\cdot8\ cups=2.4\ cups$

$\bold{METHOD\ 2:}\\\\\begin{array}{ccc}100\%&-&8\ cups\\\\30\%&-&x\end{array}\qquad\text{cross multilpy}\\\\100x=(30)(8)\\\\100x=240\qquad\text{divide both sides by 100}\\\\\dfrac{100x}{100}=\dfrac{240}{100}\\\\x=2.4$

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3 years ago

480/X - 8 - 480/x = 3

Nataliya [291]

Answer:

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2 years ago

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One cup equals approximately 236 ml. Approximately how many ml are there in one gallon

GREYUIT [131]

Answer:

<u>Approximately there are 3,785.6 milliliters in one gallon </u>

Step-by-step explanation:

Let's find out how many milliliters are there in one gallon.

1 US Cup = 236.6 ml (actual equivalence)

Let's recall that:

16 US Cups = 1 US Gallon

Therefore,

1 US Gallon = 16 * 236.6 ml

1 US Gallon = 3,785.6 ml

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5 0

3 years ago

9n - 2 - 6n - 3<br> I need help with question.

andrew11 [14]

9n - 2 - 6n - 3
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3 years ago

F(x) = 3x + 2<br> What is f(5)?

ehidna [41]

Answer:

f(5) = 17

Step-by-step explanation:

f(x) = 3x + 2

f(5) = 3(5) + 2

f(5) = 15 + 2 = 17

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3 years ago

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