Angle f is 72°, angle e is 153°, and angle g is 81°
27.
18 divided by 2 = 9
40 divided by 2 = 20
20 x 3 = 60 min = 1 hour
9 x 3 = 27.
so 27 problems finished in 1 hour.
Answer:
No (1,8) is not a solution to 19x+3y=2.
However, (1,8) is a solution to 3x+y=11.
Step-by-step explanation:
(1,8)
The one represents the x shown in each equation, the eight represents the y.
Substitute the one in for the x and the eight in for the y.
19x+3y=2
19(1)+3(8)
3x+y=11
3(1)+(8)
Next, solve the equation.
19(1)+3(8) = 43
3(1)+(8) = 11
As you can see, 43 does not equal 2.
But, 11 does equal 11.
