Question

Please help me

Answer 1

The rectangles are similar. The length of the larger rectangle is 3x + 1 and the width is 8. The length of the smaller rectangle is 5 and the width is 4. What is the length of the larger rectangle?

Answer 2

I got 3 but that does't seem to be reasonable

Answer 3

well from looking at this we know that the width of the larger rectangle is 8, and the width of the smaller one is 4, we also know that half of 8 is 4, so that gives us a good head start :) Now since the length of the larger is unknown well make it x, and the length of the smaller rectangle is 5. so now we would do 5+5 and get 10 I think

Answer 4

I don't know

Answer 5

@mathmale what do you think

Answer 6

The rectangles are similar. The length of the larger rectangle is 3x + 1 and the width is 8. The length of the smaller rectangle is 5 and the width is 4. What is the length of the larger rectangle?

Wasn't there an illustration with this problem, Daniel?

Answer 7

Yes sir
https://s3.amazonaws.com/algebranation/testyourself_uploads/images4/4.2.2.jpg

Answer 8

If not, we can still solve this problem without an illulstration.

I will re-draw the 2 rectangles and add the given dimensions:

Answer 9

https://s3.amazonaws.com/algebranation/testyourself_uploads/images4/4.2.2.jpg

Answer 10

Daniel, think of what y ou might do next. I'll be back in a minute or two. (Hint: write and equate ratios).

Answer 11

\[\frac{ 3x+1 }{ 8 }*\frac{ 5 }{ 4 }\]

Answer 12

I did that and i got 3... x=3

Answer 13

You're doing fine!

Answer 14

Comfortable with this one?

Answer 15

So it is 3?

Answer 16

@mathmale

Answer 17

Yes indeed. I should have said YES up front, instead of "You're doing fine."

Answer 18

Thanks

Answer 19

And thank you too!!