Mathematics, 14.02.2020 06:36 michaelmatonis

N / 10 +7 =10. plz answer this I need help

Answers: 3

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Answer from: liluv5062

n=30

Step-by-step explanation:

$\frac{n}{10}+7=10$

What I am looking for in this problem is the easiest way to isolate

on one side of this equation. For me, the way to solve problems like this one came with experience, so often I automatically have a system that I follow for solving equations like this one without trouble. What I'm saying is that as long as you understand the rules of different operations like multiplication, addition, subtraction, etc, you have several ways to solve for Anyways, let's start by moving our integers not being multiplied or divided to one side, and anything being multiplied or divided to the other. In this case, that is canceling out our

on the left side of the problem by subtracting on both sides, like so.

$\frac{n}{10}+7=10\\\frac{n}{10}+7-(7)=10-(7)$

Because I'm subtracting on both sides of the problem, each side is still equal.This is our resultant.

$\frac{n}{10}=3$

Now, things are more straightforward. All I need to do is get rid of the denominator below

. This is very simple, I just need to multiply what's on the denominator onto both sides. I'll show how the math works, but if this confuses you, just know that doing this will cancel out the denominator.

$\frac{n}{10}=3\\\frac{n}{10}(10)=3(10)\\\frac{n}{10}(\frac{10}{1})=30\\\frac{10n}{10}=30\\$

Because

is both being multiplied and divided by the same number, these two operations cancel out, leaving us with just

n=30

Double Checking Your Work:

If we assume that both $\frac{n}{10}+7=10$ and n=30

are true, then we can try substituting

into our equation and seeing if it is equal.

$\frac{n}{10}+7=10\\n=30$

$\frac{(30)}{10}+7=10$

goes into

three times, so $\frac{30}{10}=3$ .

$3+7=10\\10=10$

This shows that we definitely got the value of

correct.

Answer from: Quest

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

Answer from: Quest

How am i goonna know explain
Is the following relation a function?

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N / 10 +7 =10. plz answer this I need help...