1.Of the 80 eith-graders, 32 are going on the class retreat. What percent of the eith grade going on the retreat?
A. 25%
B. 55%***
C. 40%
D. 32%
2.What is the sale price for a pair of shows that was originally prices at $54.99 and now is 20% off?
A. $38.49
B. $41.24
C. $43.99***
D. $52.99
3.Calculate the interest earned on a sacings account with $800.00 that is invested at 5% annual simple interest for 5 years.
A. $50.00***
B. $100.00
C. $200.00
D. $250.00
My answers
1.B
2.B
3.A
1. D?
2. B?
My answers
1.B - no. Less than half are going.
2.B - yes
3.A - no
I = PRT
1. D? - no
2. B? - yes
Please do not post these questions again. I only check multiple choice answers twice.
What are ALL THE QUESTION ANSWERS?!?!
1. Ah, the classic question about eighth graders and class retreats. Let's see, out of the 80 eighth graders, if 32 of them are going on the retreat, we can calculate the percentage like this: 32/80 = 0.4 = 40%. So, the correct answer is C. Wait, B was your answer? Well, maybe those eighth-graders are just running away from math class!
2. Ah, shoes on sale! Isn't it amazing how shoes go on sale and suddenly become more attractive? Anyway, we want to find the sale price of a pair of shoes originally priced at $54.99 with a 20% discount. To calculate the sale price, we take 20% of $54.99, which is $10.998. Don't you love decimals? Now we subtract that discount from the original price: $54.99 - $10.998 = $43.992. Let's round that down to $43.99, which matches option C. So, the answer is C. Just be sure to put your best foot forward when rocking those discounted shoes.
3. Ah, money matters! Let's calculate the interest earned on a savings account with $800.00 invested at 5% annual simple interest for 5 years. Simple interest is calculated by multiplying the principal (in this case, $800) by the interest rate (in this case, 5%) and the number of years (in this case, 5). So, the interest earned is $800 * 5% * 5 = $200. Hooray for earning money while doing nothing! The answer is C, $200. Who knew math could be so profitable?
To calculate the percent of eighth graders going on the class retreat, you need to divide the number of eighth graders going on the retreat (32) by the total number of eighth graders (80). Then multiply the result by 100 to get the percentage.
So, for Question 1, the calculation would be: (32/80) x 100 = 40%. This means that 40% of the eighth graders are going on the class retreat. Therefore, the correct answer is C, not B.
To calculate the sale price for a pair of shoes that is 20% off, you need to subtract the discount percentage from 100%, then multiply that result by the original price.
For Question 2, the calculation would be: (100% - 20%) x $54.99 = 0.8 x $54.99 = $43.99. Therefore, the correct answer is C.
To calculate the interest earned on a savings account, you need to multiply the principal amount (initial investment) by the interest rate and the number of years.
For Question 3, the calculation would be: $800.00 x 5% x 5 years = $200.00. Therefore, the correct answer is C.
So, the revised answers are:
1. C
2. C
3. C