can someone check my math answers its only 5 questions thanks.
please check my answers !
21. Find the unit price for each option shown below. Round to the nearest cent when necessary. Indicate which option is the better buy.
Option I: 10 candy bars for $6.75
Option II: 12 candy bars for $7.25
ANSWER= 10/$6.75=$1.48
12/$7.25=$1.65 10 Units cheaper
(I PICK OPTION 2)
22.Calculate the final price you would pay to buy jacket that originally sells for $65, but is discounted by 40%; you also have to pay 5% sales tax
ANSWER=65 x 0.6=30 39 x 1.05=40.95
23.
Katy was picking berries. She picked 270 in 18 minutes. How many will she have picked in 25 minutes?
ANSWER:270 divided by 18=15 she picked 15 ever minute. 15 x 25=375. she picked 375 berries in 25 minutes
24.Solve the proportion. 16/50=x/156.25
Answer= 16/50=50/156.25
50(50)=(16) (156.25)
2500=2500
X=50
25.green(42%) blue is soccer
blue(25%) red is baseball
red(33%) green is football
If 210 people said football was their favorite sport to watch, how many people were surveyed?
ANSWER=500 people where surveyed.
210 by 42=5
1%=5 people
100% x 5 people=500
21 is wrong.
6.75 / 10 = 0.68 each
7.25 / 12 = 0.60 each
22. right
23. right
24. right
25. If 33% (210) said football, then 3 * 210 = 630 were surveyed
42% said football, not 33$
How in the world on number 25 did you get that.
210/42%=5 5x100=500
i looked up If 210 people said football was their favorite sport to watch, how many people were surveyed? but this poped up...........OOF
Thx but I wasn't looking for that answer but thx
To check your math answers for the given questions:
21. To find the unit price for each option, divide the total cost by the number of candy bars in that option.
- Option I: 10 candy bars for $6.75, the unit price is $6.75/10 = $0.675.
- Option II: 12 candy bars for $7.25, the unit price is $7.25/12 = $0.6042.
Therefore, option II has a lower unit price and is the better buy.
22. To calculate the final price of the jacket with a 40% discount and a 5% sales tax:
- Start with the original price of $65.
- Apply the discount: $65 * (1 - 40%) = $65 * 0.6 = $39.
- Add the sales tax: $39 * (1 + 5%) = $39 * 1.05 = $40.95.
The final price you would pay for the jacket is $40.95.
23. To find the number of berries Katy will have picked in 25 minutes based on the given rate:
- Divide the total number of berries picked in 18 minutes by 18: 270 / 18 = 15 berries per minute.
- Multiply the rate (15 berries per minute) by the duration (25 minutes): 15 * 25 = 375.
Katy will have picked 375 berries in 25 minutes.
24. To solve the proportion 16/50 = x/156.25:
- Cross-multiply: 16 * 156.25 = 50 * x.
- Divide both sides by 50 to solve for x: (16 * 156.25) / 50 = x.
The value of x is 50.
25. To find the total number of people surveyed if 210 people said football was their favorite sport to watch:
- Divide 210 by the percentage (42%): 210 / 0.42 = 500.
Therefore, 500 people were surveyed in total.