Multiply the number of tosses by the percent of heads:
20 tosses x 0.75 = 15
The answer is 15.
She must get 46 questions correct to get a 92% on the test
(1, 3) are the correct coordinates of the intersection (or solution) of this system.
Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 8.000 and for x=2.000, the value of y is 4.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 4.000 - 8.000 = -4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)
<span> Slope = -4.000/2.000 = -2.000</span>