- anonymous

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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## More answers

- anonymous

- anonymous

yes

- 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%

- anonymous

sir im o very sorry i do history so o sorry

- anonymous

ok and not a sir

- anonymous

- anonymous

anyone please

- anonymous

- anonymous

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

- anonymous

please explain more

- anonymous

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

- anonymous

0k so -0.88

- anonymous

-0.14666666666 is my answer

- anonymous

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

- anonymous

14.67 %

- anonymous

right?

- 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.

- anonymous

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

- anonymous

Sure. Please post your questions.

- 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.

- anonymous

btw you are so polite

- anonymous

is it choice B?

- anonymous

Im just guessing

- 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?

- anonymous

ok for A) 0.15863636363 and for b) 0.11975

- anonymous

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

- anonymous

b

- anonymous

Well done!

- anonymous

do you mid helping with like 10 more other questions

- anonymous

Please

- anonymous

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

- anonymous

np

- 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.

- anonymous

do you get it

- 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...

- anonymous

D)

- anonymous

cause X axis multiplied by Y axi9

- 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?

- anonymous

csausre

- anonymous

oops sorry

- anonymous

yes

- anonymous

so X * 9 = Y

- anonymous

how about this one

- 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

- 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?

- anonymous

7

- anonymous

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

- anonymous

Is that 1:7 or 7:1 ?

- anonymous

7:1

- anonymous

C

- anonymous

Well done!

- anonymous

ok this is a fracttion one

- 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

- 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?

- anonymous

no not really i am a slow learner

- anonymous

if you dont know how we can skip it

- anonymous

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

- anonymous

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

- anonymous

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

- anonymous

k

- 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.

- anonymous

1/7

- anonymous

no 1/8 sorry

- anonymous

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

- anonymous

11 1/7

- anonymous

1 & 1/7

- anonymous

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

- anonymous

4/49

- anonymous

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

- anonymous

32/49

- anonymous

oh yes!!! D)

- anonymous

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

- anonymous

mno i think that is the best anyone could do

- 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

- anonymous

i wanted to know if it was A)

- anonymous

cuz i had solved it but wuz unsure

- anonymous

You are correct. Good job.

- anonymous

i did it!!!

- anonymous

Yayyy!

- 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

- 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?

- anonymous

completely, yess

- anonymous

OK. What's 15 x 1/3 ?

- anonymous

5 easy

- anonymous

Bingo!!

- anonymous

ok

- 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

- anonymous

What number (constant of proportionality) do you need to multiply the number of packs by to get the number of ounces?

- anonymous

number of packs of cerials number of ounces
2 34
3 51
4 68

- 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.

- anonymous

so 68, 153, 272

- anonymous

If 2 packs is 34 ounces, how many ounces is there in 1 pack?

- anonymous

17

- anonymous

oh thats my answer?

- anonymous

ok ok i see i see

- 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.

- anonymous

Sorry. 51 ounces.

- anonymous

yes

- anonymous

and np

- anonymous

Then you've got the right answer. Yayy!

- anonymous

yayy!

- anonymous

Sorry. I have to log off. It's been a pleasure working with you!

- 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

- anonymous

please last one

- anonymous

OK. Last one.

- anonymous

thank you

- anonymous

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

- 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?

- anonymous

multiply

- anonymous

Yayyy! You did it!!

- anonymous

ok wait

- anonymous

i need to give you a medal

- anonymous

and fan you and give testimony as i promised

- anonymous

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

- anonymous

ley me tell you my grade and thank you so much

- anonymous

100

- anonymous

100% yay thanks

- anonymous

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

- anonymous

!!! YAYYY!!!!

- anonymous

you too bye

- anonymous

Have a great day

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