I don't really understand percentages grade 6 math.
1.60% discount on a 7$ item so items price is 40% of original so 0.4 x 7= 2.8$?
2. A population of 1500 people increases 15% each year how would this question be done? 1500 x .15=225 so the next years population would be 225 + 1500 is there a faster method.
1.60% discount on a 7$ item so item's price is 40% of original so 0.4 x 7= 2.8$?
The original price of an item is $7.00. Now the store wants to get rid of this item, so it advertises 60% off the original price.
You have two ways of finding out how much you'll pay for this item.
A. 60% of $7.00 =
0.6 * 7 = $4.20
$7.00 = 4.20 = $2.80
B. 100% - 60% = 40%
40% of 7.00 =
0.4 * 7 = $2.80
2. A population of 1500 people increases 15% each year how would this question be done? 1500 x .15=225 so the next years population would be 225 + 1500
Yes, that's right.
Another way of solving this to take 115% of 1500.
1.15 * 1500 = 1725
I do not get equations in any way can you help me learn it fast and not so complicated.
To understand percentages, let's explain how they work.
1. To calculate a percentage of a number, you multiply the number by the percentage.
In the first question, you have a 60% discount on a $7 item. To find the discounted price, you need to calculate 60% of $7 by multiplying 0.60 (which is 60% written as a decimal) by $7. So, 0.60 x $7 = $4.20. Therefore, the discounted price is $4.20.
However, your calculation of 40% of the original price is incorrect. The original price is $7, not $2.8. The discounted price is $4.20, which is 60% of the original price.
2. To calculate a percentage increase, you can use the following formula: New Value = Original Value + (Original Value x Percentage Increase).
In the second question, the population increases by 15% each year. To find the population for the next year, you can calculate 15% of the current population and add it to the current population.
Using the formula mentioned above:
Next Year's Population = 1500 + (1500 x 0.15)
Next Year's Population = 1500 + 225
Next Year's Population = 1725
So, the population for the next year would be 1725.
There isn't a faster method for calculating a percentage increase because it involves multiplying and adding. However, if you wanted to calculate multiple years ahead, you could use the formula repeatedly for each year, starting with the initial population and updating the population each year.