Solve the system of equations using substitution. y = 2x + 4 and 2x - y = 6

Doreen needs 1/2 of the remaining 3/4 bag of flour to bake a cake. what fraction of the entire bag does she need?

Which pair of numbers have a GCF of 3? and does 1 and 3 count as a answer

A train travels 190 km in 3.0 hours and then 120 km in 2.0 hours. What is its average speed?

You and your friend live 15 miles apart. if both start walking from your homes toward each other at 11:00 a. m.

Tyler orders a meal that costs $15, if the tax rate is 6.6%, how much will the sales tax be on Tyler's meal?

The area of a trapezium shaped field is 480m^2, the distance between two parallel Sides 15 m and one of the parallel sides is 20m. Find the other parallel side I will mark as brain lies

Chemists measure the acidity of an aqueous solution using pH. The pH is pH=-log-10[H^+] where pH is a measure of hydrogen ion concentration [H^+] measured in moles of hydrogen per liter of a solution. Find the pH of a solution if [H^+]=5.5x10^-12.

I think of a number, multiply it by 2, subtract 5 and multiply the result by 3 Write it as a algebraic question and any number being x

Whats the area of 18 inches 24 inches and 26 inches

In how many ways can you choose a committee of 7 from a total of 20 people?