10.2 divided by (unknown number) = 0.8. Find the unknown number

2x + y = 7 y = x + 1 When the expression x+1 is substituted in for y in the first equation, the result is 2x + 1 = 7 x + 1 = 7 3x + 1 = 7

Solve these equations for x. 1. 12+6x = 5-2 2. X-4 = { (6x - 54) 3. - (3x - 12) = 9x - 4

A diver swims 5.875 feet up to the surface of the water. Which number represents the diver's position in relation to the surface before swimming to the top?

Don and Donna are preparing a budget for the coming year. They want to know how much to budget each month for the electric bill.

Which of the following is not a perfect square trinomial? 144 + 12y + y2 100 + 20y + y2 64 - 16y + y2 25 + 10y + y2

If 400 feet of fencing is used to enclose a rectangular plot of land that borders a river, what is the maximum area that can be enclosed? answer to the nearest square foot without commas. for example, if the answer is 1,000, write 1000.

Find the Pythagorean triplets of 5

Caitlyn spends $17 at the store. She buys a mop for $5 and 3 bottles of floor cleaner. If x represents the cost of each bottle of cleaner, the equation that can be used to find the value of x is 3x+5=

If 1 kilogram = 2.206 pounds, how many pounds are in a gram?

Expression 2 5+4x2+6-2x2-1 Insert parentheses in Expression 2 so that it has a value of 19. Then show why your expression has a value of 19.