Question

1.) How much does this person save each month?

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

we started discussing this yesterday. remember ?

so, from a total of $2500 in the bowl, this person has to take out or away $1250 for rent, $500 for food, $100 for transportation, $100 for clothing, and $250 for other "extra" things (probably different things in each month).

so, we can either calculate

2500 - (1250 + 500 + 100 + 100 + 250) = $300

or

2500 - 1250 - 500 - 100 - 100 - 250 = $300

as you can see, the result is the same.

and what are these $300 ?

this is what's left in the bowl every month. this remaining sum is his savings. that's how much he saves every month : $300.

that simply means he does not spend that money and keeps it for later in his savings account at the bank or in his piggy bank at home, or ...

so, now to answer the questions need in what we know :

1a. is already answered. $1250 is half of $2500, so it is 50% of the whole content of the bowl.

remember, 100% stands always for the whole. so, 50% is half of 100%.

1b. $500 for food.

we could do it similarly as 1a. but I want to show you, what is really going on when calculating %, or what is an easy way to think :

100% = $2500. we know that. that's the "whole".

if I want to know about parts, we have to go for division again.

1% = 100%/100 = 2500/100 = $25

you see what I just did ? out of the 100% whole we found how much 1% is.

and to find how many % an amount is, we need to find out how often this 1% fits into that amount.

remember ? division !

so,

$500 / 1% = $500/$25 = 20%

aha ! $500 is 20% of the total of $2500.

20% is also 100%/5 or 1/5 of 100%.

1c. $100 for transportation.

still, 1% is $25

so, how often does it fit here ?

$100/$25 = 4%

1d. $100 for clothing.

the same result as for 1c. of course.

4%.

1e. $250 extra expenses

still, 1% is $25

so, how often does it fit here ?

$250/$25 = 10%

2. we established already at the beginning that he saves $300 every month.

if we would be on advanced level already, we would see, hey, this is 3 times the e.g. $100 for clothing, so it must be 3×4% = 12%.

but let's just do it step by step :

still, 1% is $25

so, how often does it fit here ?

$300/$25 = 12%

hey, we were right !