Write a system of linear equations in which (2,-1) is a solution of equation 1 but not a solution of equation 2, and (5,5) is a solution of the system

a marble is rolled down a ramp. The distance it travels is described by the formula d=490T^2 where d is the distance in centimeters that the marble rolls in t seconds.

How many people do you need to switch a lightbulb?

The formula for the perimeter of a rectangle is P=2l+2w solve the formula for. W

How many different three-digit numbers between 100 and 1,000 have 5 as the tens digit?

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In a survey of US women the heights in the 20 to 29 age group we are normally distributed with a mean of 64.2 inches and a standard deviation 2.

Jose received $30 for his birthday and put it in his piggy bank. Each week, he puts 4 more dollars in his bank. The amount of money in dollars D in his bank is given by D = 4w + 30 where w is the number of weeks he has saved 4 dollars.

Mrs. sing bought a pound of green beans for $1.80. How much will Mrs. tennison and pay for 3 1/2 pounds of green beans

Two prisms with equal altitudes have equal volumes the base of one prism is a square with a side length of 5 inches the base of the second prism is a rectangle with a side length of 10 inches determine and state in inches the measure of the width of

What is the area i square inches of the triangular-shaped region that is shaded in this figure?