How many kilograms of butter of rs 140 per kg must be mixed with 20 kg of butter worth rs 150 per kg to produce a mixture worth rs 144 per kg. explain this

3 (*-4) + 6=5 (*-1) + 1 is it a one solution or infinitely many solution or no solution

You use 8 cups of flour to make 24 muffins. At that rate, how much flour will it take to make 30 muffins?

Convert the mixed number to an improper fraction. enter your answer below using the slash mark (/) as the fraction bar. 4/frac{1}{8}

An express bus travels 320 miles in the same amount of time that a car travels 280 miles. the rate of the car is 8 mph less than the rate of the bus. find the rate of the bus.

The difference between to negative numbers is always negative true or false

The volume of a solid is the amount of space inside the solid. TrueFalse

Find the volume of the right triangular prism 2.5ft 3ft 7ft

Am I right? A basketball is dropped from an original height of 9 feet and on each bounce, bounces up 2/3 the distance it fell. How far will it have traveled by the time it hits the ground the 4th time? I got 21.

Find the value of 7x^2+2x when x=3

The two legs of right angle triangle are 3 inches and 4 inches long, how long is the hypotenuse