Mathematics Middle School

PLZ TAKE THIS SERIOUSLY i dont undertsnad this at all can you guys help at least do 3 out of the five! do not answer if u just want points or dont known either!

Answers

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Question 7

Lateral Surface Area: 200

Total Surface Area: 248

Question 8

Lateral: 720

Total: 840

Question 9

Lateral: 80

Toatl: 104

I can't answer them all for you, but if you need more help just ask.

Related Questions

PLS HELP ME- I HAVE TO TAKE A TEST AND IM SO CONFUSED ON 8 QUESTIONS-Directions :Use the given information to find the missing piece. You may use any method to solve the following problems, but please make sure to show all work.
1. Original price-- $80
Percent of discount—20%
Sale price-- ???

2.Original price-- $82
Percent of discount-- ???
Sale price-- $65.60

3. Original price-- ???
Percent of discount—5%
Sale price-- $57

4.A store pays $85 for a game system. They mark it up 125%. If 6% sales tax is applied on top of the new price, what is the final price of the aquarium?

5. Your friend used a $20 coupon to purchase a pair of sneakers that were advertised at $139.99. You buy the same shoes, but you use a 20% off coupon. Who paid a cheaper price?

6. A store buys an item for $10. To earn a profit of $25, what percent does the store need to markup the item?

7.You and 2 friends go out to dinner. The food bill comes to $35.20, and you are charged an additional 6% sales tax. You then want to leave an 18% tip just on the price of the food. If you split the final amount evenly, how much should each person pay?

8.You start the baseball season with 10 strikeouts. By the end of the season, you only have 4 strikeouts. What is the percent of change of the number of strikeouts? (don’t forget increase or decrease!)

PLS HELP MEEE THIS IS A 45 QUESTION TEST- IM SO CONFUSED ON THESE QUESTIONS- IM SO BAD AT THIS KIND OF MATH SUHYDSKLJ
SRRSLY PLEASE HELP MEEE I WILL MARK BRAINLY- IM LOOSING POINTSSSS- PLS HELP ITS DUE BY 2PM AND I NOW HAVE NO MORE POINTSSSS PLS HELPP

Answers

1. Original price-- $80
Percent of discount—20%
Sale price-- ???

Convert 20% to a decimal by dividing by 100, = 0.20 Multiply that by $80
80 x 0.20 = $16 discount.
80 - 16 = $64 sale price

Or you can say after you take 20% away, you have 80% left. Multiply $80 x 0.80 = $64

2.Original price-- $82
Percent of discount-- ???
Sale price-- $65.60

Full price x percent left after discount = sale price
82x = 65.60 divide both sides by 82
x = 0.8
Multiply that times 100 to get the percentage,
x = 80%

3. Original price-- ???
Percent of discount—5%
Sale price-- $57

5% off leaves us 95% to pay = 0.95
0.95x = 57
x = $60

4.A store pays $85 for a game system. They mark it up 125%. If 6% sales tax is applied on top of the new price, what is the final price of the aquarium?
85 x 1.25 = 106.25
106.25 x 0.06 = 6.375 added
106.25 + 6.375 = 112.625 = $112.63

5. Your friend used a $20 coupon to purchase a pair of sneakers that were advertised at $139.99. You buy the same shoes, but you use a 20% off coupon. Who paid a cheaper price?

Remember that 20% off = paying 80%

139.99 - 20 = $119.99
139.99 x 0.8 = $111.99

You pay a cheaper price

6. A store buys an item for $10. To earn a profit of $25, what percent does the store need to markup the item?

$10 cost + $25 profit = $35 new price
So we need percent difference between 10 and 35

10x = 35
x = 3.5, multiply by 100 to get the percentage = 350%

7.You and 2 friends go out to dinner. The food bill comes to $35.20, and you are charged an additional 6% sales tax. You then want to leave an 18% tip just on the price of the food. If you split the final amount evenly, how much should each person pay?

Well, we can ignore the tax part and look at the price of the food + price of the food x 18%
35.20 x 1.18 = 41.536
41.54 divided by 3 people = $13.85 per person

8.You start the baseball season with 10 strikeouts. By the end of the season, you only have 4 strikeouts. What is the percent of change of the number of strikeouts? (don’t forget increase or decrease!)

10x = 4
x = 0.4 = 40% decrease.

LMK if you have questions about these

WOW!!! Thank you so much I had the same question this really helped me a lot thank you guys so much

The value (in degrees) of each of the interior angles of a regular n-gon is represented by x. Write an inequality that describes the minimum value of x.

Answers

Answer:

(n - 2)180 = x

Answer:

180

Step-by-step explanation:

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