Question

The relation between degrees Fahrenheit F and degrees Celsius C is described by the function F=9/5C + 32. In the following ordered pairs, the first element is degrees Celsius and the second element is its equivalent in degrees Fahrenheit. Find the unknown measure in each ordered pair.
a.(43,m) b. (-12,n) c.(p,12) d.(q,19) HELP PLEASE.

Answer 1

ok... so in the ordered pair

43 = C and m = F

find F using the formula

F = 5/9 C + 32

so substituting will give

\[m = \frac{5}{9} \times 43 + 32\]

just evaluate to find m.

the same process for (b)

for (c) and (d) you need to find C given F

Answer 2

I know how to to get that far but how do you do the 5/9x43?

Answer 3

well its simply

\[m = \frac{5 \times 43}{9} + 32\]

so

m = 215/9 + 32

Answer 4

ohhhhh okay so then m=55.8?

Answer 5

thats correct

Answer 6

thankyou so much!

Answer 7

& what do you mean by for (c) and (d) you need to find C given F

Answer 8

in (c)

12 = 5/9p + 32

you need to solve for p

Answer 9

yeah so I'd do the same thing you did up top? 12=5p/9+32? or should I subtract 32 on both sides to get -20=5/9p & go on from there?

Answer 10

multiply both sides by 9 to get rid of the denominator

what do you get

Answer 11

108=5 x p +32

Answer 12

then does it become 108= 5p+32?

Answer 13

then i subtract 32 on both sides

Answer 14

I was using you last form of the equation

\[-20 = \frac{5p}{9}\]

when I said multiply both sides by 9

Answer 15

ok so i dont do what i just typed to you?

Answer 16

ok... you are correct in getting to

\[-20 = \frac{5p}{9}\]

now multiply both sides by 9

Answer 17

alright so the answer is -36=p

Answer 18

thats correct well done