Help me with this math problem

Anonymous
If I spent $60 and ended up being 120 percent of my budget, what amount would be 100 percent? How would i calculate this?
I am trying to help my kid with his math homework and I would know how to do it in my head but terrible at explaining. Help!?
Anonymous
What grade math?

There are a bunch of approaches, depending on what skills they have under their belt.

Anonymous
Anonymous wrote:What grade math?

There are a bunch of approaches, depending on what skills they have under their belt.



6th
Anonymous
So in word terms, you’ve got 60$ on one side of the equation, and X times 120% on the other side of the equation. (X is your budget). So, if you divide both sides by 120%, you’ll get what X is. 60/120% will give you X.

(Which is the same as what 100% of X is)
Anonymous
60$ = 1.2 x X
X = 60 /1.2
X = 50$
Anonymous
60 = 1.20x

x = budget
Anonymous
60=x*1.20 (120% converted to a decimal)

60/1.20=x

x=50
Anonymous
Anonymous wrote:So in word terms, you’ve got 60$ on one side of the equation, and X times 120% on the other side of the equation. (X is your budget). So, if you divide both sides by 120%, you’ll get what X is. 60/120% will give you X.

(Which is the same as what 100% of X is)


Yes, or 60 = 1.2x

You solve for x by dividing each side by 1.2

100% of x is x; 120% of x is 1.2x
Anonymous
50$
Anonymous
x is 100 %budget and 20%=1/5 so:

x + 1/5 x = $60

5x + x = $300

6x = $300

x = $50
Anonymous
Anonymous wrote:x is 100 %budget and 20%=1/5 so:

x + 1/5 x = $60

5x + x = $300

6x = $300

x = $50


PP here - Well, I went the long way around. Clearly the 1.2 x posters were more efficient. Maybe I should revisit 6th.
Anonymous
Anonymous wrote:
Anonymous wrote:x is 100 %budget and 20%=1/5 so:

x + 1/5 x = $60

5x + x = $300

6x = $300

x = $50


PP here - Well, I went the long way around. Clearly the 1.2 x posters were more efficient. Maybe I should revisit 6th.


😂 PP, this was hilarious

- love, the 120%
Anonymous
Ratios also help some kids with this type of question.
X/100 = 60/120

For some the jump straight to losing the zeros and rearranging doesn't make sense right away.
Anonymous
Giving the algebraic equation is correct, but not helpful for teaching percentage calculations. You need to teach how to determine the equation in the first place.

When I was in sixth grade, we were taught how to set up an “I” chart. When I recently had to teach this topic to 30 new adults just hired for our company, I resurrected the “I” chart.

Let me know if you want more explanation.
Anonymous
Do they want you to cross multiply?

60/120 = X/100

120X = 6000

12X = 600

X = 50

So your budget was $50.
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