Miss Black completes a journey in 3 stages.
In stage 1. she drives at a speed of
40km/h for 45 minutes.
In stage 2, she drives at 60 km/h for
2 hours 9 minutes.
Altogether, over the 3 stages, Miss
Black drives 171.6km in 3 hours 15
minutes
What is her average speed, in km/h,
in stage 32

(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

b

step-by-step explanation:

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