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...

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

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

Solution of the equation.

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...

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...

what is the answer of this question ?

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...

-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!!!

6x-2y=12 ____________________

There are twice as many pencils in Julius's pencil box than in Lucy's. Julius attempts to write this relationship as an equation which he believes is correct. He writes: if J=the number of Julius's...

Write a system of equations to represent the situation, using d of days and p for pages

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...

Please I really need help

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