Question

11. The formula for converting degrees Fahrenheit to degrees Celsius is F = 9/5C + 32. At what Celsius temperature is F = C?

Answer 1

-40................... put F=C and solve the equation

Answer 2

this is how approached the problem

5*F= (9/5C + 32)* 5 **I multiplied 5 to cancel out the fraction
____________________
5 5
F=9C+32
__________
5

Now I am conflicted

Answer 3

17. Which of the following are true?
(i) 3 dam=3*10^3 cm
(ii) 22mm=22*10^6 km
(iii) 7 dm=7 10^-2 dam
A) (i) and (ii) only
B) (i) and (iii) only
C) (ii) and (iii) only
D) (i), (ii), and (iii)

Answer 4

Since F=C
F = 9/5C + 32
C = 9/5C + 32
-32 = 4/5C
C = -32 /(4/5) = -40

Answer 5

1 dam = 1 000 cm => 3 dam = 3 000 cm = 3x 10^3 cm
1km = 1000m = 100 000 cm = 1 000 000mm
1dm =10cm
Can you try?

Answer 6

yes. thank you for your help.