Bill S.

a school system is buying new computers. They buy desktop computers costing $1000 per unit, and notebook computers costing $1200 per unit. the total cost of the computers cannot exceed $80,000.... more

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Each side of a equilateral triangle is 4 cm. longer than the side of a square. The sum of the perimeters of the two figures is 96 cm. how long is each side of the triangle?

This is a word problem that states: "The ratio of two numbers is 3:4. Their sum is to the sum of their squares as 7 is to 50. Find the numbers. (Hint: The sum of their squares would be (3x)^2 +... more

A person riding a Ferris Wheel with a diameter of 81 feet travels once around the wheel in 2.5 minutes. What is the avatar speed of the rider in feet per second (rounded to the nearest hundredth of... more

trent can delivers in 10 minutes. It takes lois 40 minutes to deliver. how long would it take them to deliver if they work together?

Describe how you know if an inequality is an “and” or an “or” problem. (use -3 < x+5 < 8). Also, how do you know if an absolute value question is an “and” or an “or” problem? Lastly, will you... more

A. y-2=-4(x+6)  B. y= -4x+2 C. Y-6=-4(X+2) D. Y=-4X+3 E. Y-6=-4(X+1) F. Y-1=-4(X+6)

Find a missing number?pattern 1: North(4)South(9)East(6) West(6)pattern 2: North(7)South(8)East(?) West(4)   answer is 14, why?

Triangle ABC has vertices A(3,4), B(-5,2), and C(1,-4). Determine the equation of AE, the altitude from A to BC.

You and A Friend are making a banner to hang between the apartment buildings across the street. You each are on the 10th floor of apartment building that are directly across the street and have... more

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IGCSE mathematics, geometry

True or false. Suppose the slope of a straight line L is -3/4 and P is a given point on L. If Q is a point on L lying 2 units to the right of P, then Q is situated 3/2 units below P.