In a class of 32 students

the mean height for the boys is 1.56 metres

the mean height of all 32 students is 1.515 metres

work out the mean mean height of the girls

What is 2x - 3y = 8 (y)

Samuel used 1/5 an ounce of butter to make 1/25 of a pound of jelly. How many ounces of butter is there per pound of jelly?

A line horizontally drawn from the center of the circle. a. Radius b. Axiom c. Circumference d. Vertex

There are 2,250 benches in a city. The number of red benches is 350 more than the number of blue benches. How many red benches are there in the city?

Every day, the Webster Pet Store uses 1/2 of a bag of dog food to feed the dogs. How many days will 3 1/2 bags of dog food last?

Find the equation of the line that cuts the y axis at y=-9 and whose slope is 1/7.

Math is often used to determine the correct dosage for medications; create scale drawings; graph data from scientific investigations. Given this information, what conclusion can be made about mathematics? A.

A car is 200 km from its destination after 1 hour and 80 km from its destination after 3 hours.

Consider the equation x-3=5. a. Multiply both sides of the equation by a constant, and show that the solution set did not change. Now, multiply both sides by x. b. Show that x=8 is still a solution to the new equation.

A gardener uses a tray of 6 conical pots to plant seeds. each conical pot has a radius of 3 centimeters and a depth of 8 centimeters. about how many cubic centimeters of soil are needed to plant the full tray? round to the nearest cubic centimeter.