Bob the builder is making 480kg of concrete mix concrete is made by mixing cement sand and gravel in the ratio1:3:4 how much sand does he need

If you were to have $1,000 and you had a choice to either have a job that paid $9/hr or $2.13/hr hours vary which would be better?

If there were 300 accidents in 1966 and 290 in 1967 what is the percent of decrease

How do you round 949999 to the nearest ten thousand

Find the center, vertices, and foci of the ellipse with equation 2x2 + 9y2 = 18.

Caroline of making 8 batches of biscuits each batch uses 5/6 cup of flour how many cups of flour does Caroline need

What are the solutions to the quadratic equation 2x2 + 10x - 48 = 0

What is the value of 13 tens

There is a geometric theorem that says if two lines are perpendicular to the same line, they are parallel to each other explain why this is true by writing & comparing equations

How do you graph (y=-1/2x-1) (y=-3x+4)

A motorboat travels 448 kilometers in 8 hours going upstream and 516 kilometers in 6 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?