2 years ago

How can you use 10% and 20% of an amount to find 15% of anl amount?

1 answer:

3 0

You just need to know how much 10% is and then you just divided what 10% is and that will be equal to 5% and then you just add the 10 % and 5%

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21y+7x=56? what is the value of X

PSYCHO15rus [73]

Answer:

x = 8 - 3y

Step-by-step explanation:

$21y+7x=56\\\\21y-21y+7x=56-21y\\\\7x=56-21y\\\\\frac{7x=56-21y}{7}\\\\\boxed{x=8-3y}$

Hope this helps.

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2 years ago

Which word phrase represents the variable expression? 2(n + 4)

Cerrena [4.2K]

Answer:

D. please mark me brainliest

Step-by-step explanation:

So thie equation basically means 2 times a number and 4 times 2 and the sum of that so as a equation it is 2*n+8 so it is n+4 times 2 so twice the sum of a number and 4

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2 years ago

If f(x)=3x^2 +x-2, then f(-2)= *12 *-16 *8 *32 help!

uysha [10]

8 is the answer

Ignore this part, Brainly wants more than 20 characters

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2 years ago

The airplane Li’s family will be flying on can seat up to 149 passengers. If 96 passengers are currently on the plane, which ine

Ivenika [448]

For this case, the first thing you should do is define a variable.
We have then:
x: number of passengers remaining who can board the plane.
We have as data:
1) They can board up to 149 passengers
2) There are 96 passengers currently aboard.
Writing inequality we have:
$x + 96 \leq 149
$
Answer:
An inequality that can be used to determine how many more people can board is:
$x + 96 \leq 149$

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3 years ago

Read 2 more answers

Which one of the following are the factors of m2-14m+48

Over [174]

D.(m-6)(m-8) is the answer

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2 years ago