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## anonymous one year ago fan, Medal , and testimony Please help!!!! i am stuck! Pansy measured the height of a window frame as 5.12 feet, but the actual height was 6 feet. What is the percentage of error in Pansy's measurement? 6.82% 6.88% 14.67% 11.12% @ganeshi8

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1. anonymous

@ganeshie8

2. anonymous

@Abhisar

3. anonymous

@SolomonZelman @sweetburger @Stormswan @shadowhuntergaming

4. anonymous

@paki

5. anonymous

yes

6. anonymous

can you help me with this Pansy measured the height of a window frame as 5.12 feet, but the actual height was 6 feet. What is the percentage of error in Pansy's measurement? 6.82% 6.88% 14.67% 11.12%

7. anonymous

sir im o very sorry i do history so o sorry

8. anonymous

ok and not a sir

9. anonymous

@speartonion @Skip2mylou426 @Stormswan

10. anonymous

anyone please

11. anonymous

@shamallamadingdong

12. anonymous

$Error = \frac{ Measured - Actual }{ Actual }\times 100 \%$

13. anonymous

please explain more

14. anonymous

The measured height is 5.12 feet. The actual height is 6 feet. Put in above equation.

15. anonymous

0k so -0.88

16. anonymous

-0.14666666666 is my answer

17. anonymous

You need to multiply by 100% to convert it into a percent error.

18. anonymous

14.67 %

19. anonymous

right?

20. anonymous

Correct. Well done. I neglected to say that the answer should be a positive number so you would need to take the absolute value. But you figured that out.

21. anonymous

ok can you help with a few more cuz you rock!!!

22. anonymous

Sure. Please post your questions.

23. anonymous

Which unit rate is the lowest price per ounce? Choice A: 22 ounces of potato chips for $3.49 Choice B: 40 ounces of potato chips for$4.79 Choice A Choice B The unit rates are equal. The unit rates cannot be determined.

24. anonymous

btw you are so polite

25. anonymous

is it choice B?

26. anonymous

Im just guessing

27. anonymous

Thanks. You must calculate the price per ounce for both choices. "Price per ounce" means divide price by ounces. What do you get for price per ounce for A and for B?

28. anonymous

ok for A) 0.15863636363 and for b) 0.11975

29. anonymous

Terrific. Choose which one is less and there's your answer.

30. anonymous

b

31. anonymous

Well done!

32. anonymous

do you mid helping with like 10 more other questions

33. anonymous

Please

34. anonymous

Maybe a couple more but then I'll need to go.

35. anonymous

np

36. anonymous

Which graph shows a proportional relationship between the number of hours of renting a canoe and the total amount spent to rent the canoe? A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 18, 36, 54, 72, and 90. Points are shown on ordered pairs 0, 0 and 2, 18 and 4, 36 and 6, 48 and 8, 56. These points are connected by a line. The label on the x axis is Number of Hours. The title on the y axis is Total Amount in dollars. A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 18, 36, 54, 72, and 90. Points are shown on ordered pairs 0, 0 and 2, 18 and 4, 36 and 6, 56 and 8, 56. These points are connected by a line. The label on the x axis is Number of Hours. The title on the y axis is Total Amount in dollars. A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 18, 36, 54, 72, and 90. Points are shown on ordered pairs 0, 0 and 2, 18 and 4, 18 and 6, 18 and 8, 18. These points are connected by a line. The label on the x axis is Number of Hours. The title on the y axis is Total Amount in dollars. A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 18, 36, 54, 72, and 90. Points are shown on ordered pairs 0, 0 and 2, 18 and 4, 36 and 6, 54 and 8, 72. These points are connected by a line. The label on the x axis is Number of Hours. The title on the y axis is Total Amount in dollars.

37. anonymous

do you get it

38. anonymous

Wow! That's a lot of stuff! Basically, what you need to do is to choose the answer that describes a straight line graph. More to come...

39. anonymous

D)

40. anonymous

cause X axis multiplied by Y axi9

41. anonymous

So the x-values are given as (0, 2, 4, 6, 8, 10) and the y-values are given as (0, 18, 36, 54, 72, 90). In order for there to be a straight line, the ordered pairs must be organized like (1st x-value, 1st y-value), (2nd x-value, 2nd y-value), etc. Do you understand what I mean?

42. anonymous

csausre

43. anonymous

oops sorry

44. anonymous

yes

45. anonymous

so X * 9 = Y

46. anonymous

how about this one

47. anonymous

The graph below shows the numbers of cups of strawberry juice that are mixed with different numbers of cups of lemon-lime soda to make servings of strawberry soda: A graph is shown. The values on the x axis are 0, 1, 2, 3, 4, 5. The values on the y axis are 0, 7, 14, 21, 28, 35. Points are shown on ordered pairs 0, 0 and 1, 7 and 2, 14 and 3, 21 and 4, 28. These points are connected by a line. The label on the x axis is Lemon-Lime Soda in cups. The title on the y axis is Strawberry Juice in cups. What is the ratio of the number of cups of strawberry juice to the number of cups of lemon-lime soda? 1:28 28:1 7:1 1:7

48. anonymous

Do the same thing as you did for the last one. How many cups of strawberry juice are added for every cup of soda?

49. anonymous

7

50. anonymous

Right. Just make sure you choose the ratio in the right order. The question asks for strawberry juice : soda.

51. anonymous

Is that 1:7 or 7:1 ?

52. anonymous

7:1

53. anonymous

C

54. anonymous

Well done!

55. anonymous

ok this is a fracttion one

56. anonymous

If 4 over 7 of a ton of concrete covers 7 over 8 of a bridge, how many tons of concrete are required to cover the entire bridge? 17 over 56 ton 3 over 7 ton 1 over 2 ton 32 over 49 ton

57. anonymous

So 4/7 tons of concrete covers 7/8 of the bridge. In order to cover the entire bridge, you need to add another 1/7 of the amount of concrete. Not sure how well I explained that. Does it make sense?

58. anonymous

no not really i am a slow learner

59. anonymous

if you dont know how we can skip it

60. anonymous

Not at all. Let's see if I can do better.

61. anonymous

I know how to do it, just having trouble explaining it.

62. anonymous

i get it use the draw and solve it as if it were your math problem just dont put the answertr

63. anonymous

k

64. anonymous

OK, so 7/8 of the bridge is covered. But we need the whole bridge (8/8) to be covered. So, to go from 7 parts covered to 8 parts covered, you need to add 1 more part. But how much is that 1 more part? Well, you know how much the 7 parts is, so take that amount and divide it by 7 to figure out how much 1 part is.

65. anonymous

1/7

66. anonymous

no 1/8 sorry

67. anonymous

Mathematically,$\frac{ 4 }{ 7 } \text{ ton} + \frac{ 1 }{ 7 }\left( \frac{ 4 }{ 7 } \text{ ton}\right)$

68. anonymous

11 1/7

69. anonymous

1 & 1/7

70. anonymous

Not quite. What is 1/7 x 4/7 ?

71. anonymous

4/49

72. anonymous

Terrific. Now you need to add 4/7 + 4/49.

73. anonymous

32/49

74. anonymous

oh yes!!! D)

75. anonymous

There's your answer. Well done! Sorry for the weak explanation.

76. anonymous

mno i think that is the best anyone could do

77. anonymous

The regular price of a coat is $35.25. During a sale, the coat was marked 20% off. What was the price of the coat during the sale?$28.20 $23.25$35.05 $35.45 78. anonymous i wanted to know if it was A) 79. anonymous cuz i had solved it but wuz unsure 80. anonymous You are correct. Good job. 81. anonymous i did it!!! 82. anonymous Yayyy! 83. anonymous i tried doing what you just told me wit this one but i found myself wrong so: If a sprinkler waters 1 over 15 of a lawn in 1 over 3 hour, how much time will it take to water the entire lawn? 5 hours 15 hours 18 hours 45 hours 84. anonymous This one is a little easier. The whole lawn will take 15 times as long as it takes for 1/15 of the lawn. Does that make sense? 85. anonymous completely, yess 86. anonymous OK. What's 15 x 1/3 ? 87. anonymous 5 easy 88. anonymous Bingo!! 89. anonymous ok 90. anonymous The table below shows the proportional relationship between the weight of cereal, in ounces, and the number of packs of cereal: Number of Packs of Cereal Number of Ounces of Cereal 2 34 3 51 4 68 What is the constant of proportionality? 9 17 34 36 91. anonymous What number (constant of proportionality) do you need to multiply the number of packs by to get the number of ounces? 92. anonymous number of packs of cerials number of ounces 2 34 3 51 4 68 93. anonymous In other words, just divide the number of ounces by the corresponding number of packs. It doesn't matter which example you use, the answer will be the same. 94. anonymous so 68, 153, 272 95. anonymous If 2 packs is 34 ounces, how many ounces is there in 1 pack? 96. anonymous 17 97. anonymous oh thats my answer? 98. anonymous ok ok i see i see 99. anonymous Great. Should double check. If each pack contains 17 ounces, 3 pqcks should have 3 x 17 = 54 ounces. Does that check out? If so, then 17 is the correct answer. 100. anonymous Sorry. 51 ounces. 101. anonymous yes 102. anonymous and np 103. anonymous Then you've got the right answer. Yayy! 104. anonymous yayy! 105. anonymous Sorry. I have to log off. It's been a pleasure working with you! 106. anonymous ho w about thisL: The price of blackberries at a farm is$1.56 per pound. Which equation can be used to determine c, the total price of n pounds of blackberries? c = 1.56n c equals 1.56 over n c = 1.56 + n c = 1.56 − n

107. anonymous

please last one

108. anonymous

OK. Last one.

109. anonymous

thank you

110. anonymous

is it A) i did it i just wanna ckheck my work

111. anonymous

If you know how much each pound costs, and you know how many pounds you have, what do you do with these two values to figure out the total cost?

112. anonymous

multiply

113. anonymous

Yayyy! You did it!!

114. anonymous

ok wait

115. anonymous

i need to give you a medal

116. anonymous

and fan you and give testimony as i promised

117. anonymous

Thanks. I appreciate it. Good luck with your studies.

118. anonymous

ley me tell you my grade and thank you so much

119. anonymous

100

120. anonymous

100% yay thanks

121. anonymous

Doesn't get any better than that. Great work!

122. anonymous

!!! YAYYY!!!!

123. anonymous

you too bye

124. anonymous

Have a great day

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