Paul mixed 5 quarts of dry ingredients and 2 quarts of water to make a batch of concrete. He ran out of the mixture before finishing his project, so he made another batch using 15 quarts of dry ingredients how many quarts of water does Paul need to add to keep the consistency of the concrete the same

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

How do you write something in scientific notation?

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?