Yesterday the temperature at noon was 16.8°F. By midnight, it had dropped by 20.1°F. What was the temperature at midnight?

-3.3°F

Step-by-step explanation:

In integers , we represent fall in quantity by negative numbers.

Since, the temperature at noon was 16.8°F . By dropping it by  20.1°F means there is a - 20.1°F  change in the temperature.

Then, the temperature at midnight = 16.8°F + (- 20.1°F)

=  16.8°F - 20.1°F

= -3.3°F

Hence, The temperature at midnight was -3.3°F .

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

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step-by-step explanation: