Together, Hal and Ula paint 30 square meters of a wall in
1 hour. Then they paint another
18 square meters, but Hal works
for 30 minutes while Ula works
for 45 minutes. Write and solve
a system of equations to find the
painting speed of each person,
in square meters per hour. Then
calculate how long it would take
Hal and Ula to paint 90 square
meters of wall together.

(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

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

answer: get a conversion sheet out i dont know the exact measurments

step-by-step explanation: divide the number of feet with the nu,ber of milrs and there your answer