The formula f = 1.8c + 32 gives the temperature in degrees fahrenheit (f) for a given temperature in degrees celsius (c). there is one temperature for which the number of degrees fahrenheit is equal to the number of degrees celsius. complete the equation you can solve to find that temperature and then use it to find the temperature. use the variable c to represent the number of degrees celsius where degrees fahrenheit and degrees celsius are the same. the equation is . the temperature for which the number of degrees fahrenheit is equal to the number of degrees celsius is °c.

-40 °F = -40 °C

Step-by-step explanation:

(1) F = 1.8 C + 32

If the Fahrenheit and Celsius temperatures are the same, then

(2)        F = C     Substitute (2) into (1)

            C = 1.8C + 32     Subtract 1.8 C from each side

C – 1.8 C = 32                   Combine like terms

    -0.8C = 32                   Divide each side by -0.8

          C = -32/0.8

(3)      C = -40                  Substitute (3) into (1)

         F = 1.8(-40) + 32

         F = -72 + 32

        F = -40

So, -40 °F = -40 °C

The thermometer below shows that -40 °F = -40 °C.

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

4.

step-by-step explanation:

it have the same area.brainliest