Question

I REALLY need help on this question please.
use the formula d=rt to find the value of the missing variable.
d=135 feet, t=27 seconds
r=___ft/sec

Answer 1

\[\large d=rt\]\[\large \text{Given:} \quad d=135ft, \quad t=27s\]Plugging these values in for d and t gives us,\[\large d=rt \qquad \rightarrow \qquad 135ft=r\cdot 27s\]To solve for r, we'll divide both sides by 27.\[\large \frac{135}{27}\frac{ft}{s}=r\cdot \frac{27s}{27s}\]\[\large r=\frac{135}{27}\frac{ft}{s}\]Understand how that works? Punch it into your calculator if your teacher prefers a decimal answer.

Answer 2

would r=135
____
27 be the correct answer or can it be simplified and if so how do i do it?

Answer 3

to simplify that, (if necessary), solve it: 135/27.

Answer 4

so the answer would be r=135 over 27?

Answer 5

Hmm it looks like 135 and 27 are both divisible by 9, so yes it could be simplified a little bit.

Answer 6

yes, but first you must simplify.

Answer 7

so simplified would it be r= 5 over 1?

Answer 8

Mmmm yah that sounds right :D

Answer 9

Which can be simplified to 5

Answer 10

but would I write the answer as r= 5 over 1? or r=5?

Answer 11

r=5. although, they technically mean the same thing.

Answer 12

ok thank you very much I really appreciate it