It's an equation I need to learn

It's an equation I need to learn

In an online shop, 800 copies of a textbook have been sold, including new and used ones, and a total of 7110 euros has been obtained. A new books costs 10 euros, while the used ones are sold...

find 2 consecutive even integers such that the square of the second, decreased by twice the first is 52

Solution of the equation.

help needed with equation!

Which of the following equations has both 2 and −4 as solutions? a. x2 + 6x + 8 = 0 b. x2 - 2x - 8 = 0 c. x2 + 2x - 8 = 0 d. x2 - 2x + 8 = 0

Write the first equation- 2x+2y=?? Write the second equation- x=y+?? What is the length ?? What is the width ??

Ben and Patrick work the closing shift at the same restaurant but on different evenings. The average time it takes Ben to close the restaurant is 125 minutes. This is 20 minutes more than the time...

Determine if the following equations define the functions of x: a. y=√x+5 b. x2+y2=5

Manjit\ is\ now\ 12\ years\ old\ and\ mala\ is\ 2\ years\ old.In\ how\ many\ years\ will\ manjit\ be\ 3\ times\ as\ old\ as\ mala

the ramirez family and the gonzales family each used their sprinklers last summer. The Ramirez family sprinkler was used for 35 hours.the gonzales Family sprinkler was used for 15 hours. There was...

-3/4x+1/2y=-5 1/5x-1/4y=-1

a party planner is reserving rooms for a corporate event and has at most 1000 dolars to spend. Sunrise room costs 180 dolars per hour. With a service charge of 100 dolars. At most, how many hours...

what is the answer of this question ?

Please I really need help

Two hundred thirty-two of the 358 high school students surveyed at a local school say they plan on taking some form of postsecondary education. Calculate the margin of error (ME), rounded to the nearest...

-The largest angle is 12 times the smallest angle -The middle angle is 5 times the smallest angle Find the measures of the angles. Provide a step-by-step discussion regarding how you would...

Please help!!!

use solubility rules to predict whether or not a precipitation reaction will occur when the following aqueous solutions are mixed. write the molecular and the net ionic equation for each reaction...

6x-2y=12 ____________________