24.0k views
3 votes
Really need help on my correction if anyone know please help!!

Really need help on my correction if anyone know please help!!-example-1
User Scniro
by
8.9k points

1 Answer

3 votes
Answers:
Question 19: 177 bpm
Question 20: 95˚F

Explanations:
Question 19:
You had the formula set up properly like this:

R = (885 √(25) )/(25) = (885(5))/(25) = (4425)/(25)
This is where you went wrong - I don't know exactly what you did, but your division of 4425 ÷ 25 is wrong. You should have ended up with 177 which is the correct answer.
Question 20:
You had the formula set up correctly again, and merely used the wrong sign when adding 32.

F = (9(35))/(5) + 32 = (315)/(5) + 32
This is where you went wrong. You subtracted 32 from 63 when you should have added it. (See red circle on your subtraction.)
63 + 32 = 95˚F
User Munesh
by
7.8k points