Answer:
144 pages read
Step-by-step explanation:
80% = 0.8
0.8 * 180 = 144
For Problem #2, the second one should be 6x+4x+12, and the third one should be 10x+12
Answer:
x = 10, theta = 30 degrees
Step-by-step explanation:
i. 6^2 + 8^2 = x^2
36 + 64 = x^2
100 = x^2
10 = x
ii. the angle is 30 degrees, because the opposite side is 1/2 of the hypotenuse.
You could also solve it with the law of sines:
sin(90)/12 = sin(x)/6
Multiply each side by 6
6 * sin(90)/12 = sin(x)
0.5 = sin(x)
x = 30 degrees
Answer: (6/18) represents how 6 pounds (lb) of rice costs $18.
Step-by-step explanation: the x axis is labeled as the amount of rice, so the x value, 6 would correspond to that. same thing for the y axis.
