Can you please check my answers? Thank you!
18 out of 25 people love chocolate what percentage of people do not love chocolate?
I got 28%
15% of the Chemistry class did not pass their chapter 7 test if the class has 38 students how many students did not pass their chapter 7 Chemistry test?
I got 32 students
And motorcycle was sold for $2000 profit if the profit was 52% of the sales price what was the sales price?
I got $3040
A toys sold for $32.95 it cost $11.10 what is the percent markup?
I got 67.05%
Only your first answer is right.
1. Yep
2. You would have to multiply 15% by 38, because it's asking for the number of students who did NOT pass their test.
38 * 0.15 = 5.7 or approximately equal to 6 students
3. Let n be the sales price
It was said that 52% or 0.52 of the sales price is the profit. Thus,
0.52 * n = 2000
n = 2000 / 0.52
n = $ 3846.15
4. Percent Markup is the increase on the original selling price. To find it, we divide the selling price by the original, then we subtract 1:
(32.95 / 11.1) - 1
2.968 - 1
1.968
In percent, 1.968 * 100 = 196.8 %
Hope this helps :3
To check your answers, let's go through each question one by one.
1. For the first question, you correctly stated that 18 out of 25 people love chocolate. To find the percentage of people who do not love chocolate, you need to subtract the number of people who love chocolate from the total number of people and then convert it to a percentage.
So, the calculation would be: (25 - 18) / 25 * 100 = 28%.
Your answer of 28% is correct.
2. In the second question, you are given that 15% of the Chemistry class did not pass their chapter 7 test, and the class has 38 students. To calculate the number of students who did not pass the test, you multiply the percentage (in decimal form) by the total number of students.
So, the calculation would be: 15% * 38 = 0.15 * 38 = 5.7 (rounded to the nearest whole number).
Your answer of 32 students is correct.
3. For the third question, you are told that the motorcycle was sold for a $2000 profit, which represents 52% of the sales price. To find the sales price, you need to divide the profit by the percentage (in decimal form) and then add it to the profit.
So, the calculation would be: $2000 / 0.52 + $2000 = $2000 / 0.52 = $3846.15 (rounded to the nearest cent).
Your answer of $3040 is incorrect. The correct answer is $3846.15.
4. In the fourth question, you are given that a toy sold for $32.95 and it cost $11.10. To find the percent markup, you first need to calculate the amount of markup, which is the difference between the selling price and the cost. Then, divide the markup by the cost and multiply by 100 to get the percentage.
So, the calculation would be: ($32.95 - $11.10) / $11.10 * 100 = $21.85 / $11.10 * 100 = 1.966 * 100 = 196.6% (rounded to the nearest hundredth).
Your answer of 67.05% is incorrect. The correct answer is 196.6%.
Remember, it's always helpful to show your working and double-check your calculations to ensure accuracy.