I need help with Ratios can anyone help me?
I will medal and fan!

- Miss.Rose

I need help with Ratios can anyone help me?
I will medal and fan!

- Stacey Warren - Expert brainly.com

Hey! We 've verified this expert answer for you, click below to unlock the details :)

- schrodinger

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

- anonymous

Ill try

- MD152727

I can

- MD152727

I am in 9th grade :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- Miss.Rose

Okay. Great!
First question: Which is the best equation to use to solve this problem?
The perimeter of a rectangle is 68 ft. The ratio of the length to the width is 9 : 8. What are the dimensions of the rectangle?
A. \[\frac{ 9x }{ 8x }=68\]
B. 9x+9x+8x+8x=68
C. 2x+2x=68
D. 9x+8x=68

- MD152727

2x + 2x = 68
9x/8x = 68
9x + 8x = 68
9x + 9x + 8x + 8x = 68

- Miss.Rose

@Ghostgate @ShiBuringa
Can you help?

- ShiBuringa

Which answer do you think it is? And Why?

- Miss.Rose

I'm not really sure... I mean any of the answers could work.

- ShiBuringa

The perimeter (around the rectangle, I believe) Is 68 feet in total. Length is 9 feet long, and the width is 8 feet. Of course.. we need to find our what x equals.

- ShiBuringa

Right?

- ShiBuringa

Anyways.. We can take away the answer C and D away. And A. xD So that leaves one answer.. xP

- Ghostgate

Okay, you have 68 feet in total for the perimeter, however you have 2 length and 2 width measurements that are unknown, which can be represented by 'x' since they are unknown, however the length to width ratio is 9:8, so... with that in mind, what do you think the answer is?

- Miss.Rose

2x+2x=68?

- Ghostgate

No, 2x doesn't add up, your length measurement is represented by the '9' on the ratio and your width is measured by the '8' on the ratio, not 2. What I meant by 2 is that you have 2 width and 2 length measurements, in other words like 'x + x' = length total and 'y + y' = width total as an example.

- Miss.Rose

So... the answer would be 9x+9x+8x+8x=68?

- Miss.Rose

Um... no. Why?

- Ghostgate

Okay, take for example a square, or rectangle I guess, where not all 4 sides are equal, but one side and the one across from it equal, if you get what I mean, like this:
|dw:1450134084038:dw|

- Miss.Rose

Yes, I get it.
Can you help me with one more, then look over 3 questions I already answered?

- Ghostgate

Alright, so you understand how you got your answer from before then?
Also, alright let's go over the others then.

- Miss.Rose

This is the one I need help with: Ratio's Question 2.
Then the 3 I need you to look over are Ratio's Question 3,4,5

- Ghostgate

For question 2, go over the scenario again, you know that the ratio is 9 to 8, and the total is 136 sq. ft. this time. So, you can bring up the old equation as a reference:
9x + 9x + 8x + 8x = 136 - With that in mind, you can add like terms, so... what would that give you?
For question 3, you are correct, a simple way to do it I guess would be to divide 270 by 5 to get 54, then multiply 54 by 4 to get 216. A pretty quick way to check your answer.
For question 4, simply to check, divide 2,700 by 4,000 to get your answer. But yes you are correct.
For question 5, I believe you're correct, considering you have 4x and 5y.
I hope that helps in someway, have a great day! ;)
{---Ghostgate---}

- Miss.Rose

@rebeccaxhawaii

- Miss.Rose

@Ghostgate I still do not get it for number 2.

- Ghostgate

As I narrowed it down, you now have:
9x + 9x + 8x + 8x = 136 - You have to add like terms, do you know what the term 'like terms' means?

- Miss.Rose

Terms that are similar?

- Ghostgate

Yes, for example:
3x + 2x + 5 = 120 - For instance, '3x' and '2x' are similar because the 'x' variable exists for both, '5' isn't considered similar since we don't know what 'x' is, same could be said for this:
3x + 2x + 5y + 6y + 5 = 120 - As far as this goes, '5y' and '6y' are like terms because they share the 'y' variable.

- rebeccaxhawaii

okay so for the first one of the 4 attachments

- Ghostgate

Now, what does:
9x + 9x + 8x + 8x = ? - What does it come out to be?

- rebeccaxhawaii

so 9:8 when multiplied by 4 is 36 and 32 so |dw:1450135102599:dw|

- rebeccaxhawaii

the perimeter would come out to 136 therefore your answer being c

- rebeccaxhawaii

\[270\div216=1.25 and 5\div4=1.25\]

- rebeccaxhawaii

so your answer is correct for the second one

- Miss.Rose

Okay, great! Thank you both! I do not know what I would do without your help.
Thanks, again!
Have a great rest of the day!

- Ghostgate

@rebeccaxhawaii You like bluntly gave her the answer then started explaining...
The way you do it:
9x + 9x + 8x + 8x = 34x
34x = 136 - Divide 34 by both sides:
1x = 4 - Or - x = 4
9*4 = 36 and 8*4 = 32, so...:
Your length is 36 and your width is 32.

- rebeccaxhawaii

no i explained which the answer at hand lol k bye @Ghostgate

- Ghostgate

You mentioned that the length was 36 and the width was 32 within your first reply, then afterwards explained your method on getting there.

Looking for something else?

Not the answer you are looking for? Search for more explanations.