Mathematics, 05.06.2021 01:00 lilbrown6369

19) You want to solve the system below by eliminating y. You multiply the first equation by 7. By what number should you multiply the second equation? * 2x - 5y = 1 -3x + 7y = -3 -5 5 -7 7

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 12:30, faith365

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Answers: 3

continue

Mathematics, 21.06.2019 14:30, kutemigos9211

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Answers: 3

continue

Mathematics, 21.06.2019 20:00, makennahudson94

Someone me! if you’re smart you can solve this!

Answers: 2

continue

Mathematics, 21.06.2019 20:10, jesus319

Read the excerpt from the strange case of dr jekyll and mr. hyde what do dr. jekyll's thoughts reveal about him in this excerpt? [t]he inmates of my house were locked in the most rigorous hours of slumber, and i determined, flushed as i was with hope and triumph, to venture in my new shape as far as to my bedroom. i crossed the yard, wherein the constellations looked down upon me, i could have thought, with wonder, the first creature of that sort that their unsleeping vigilance had yet disclosed to he is jealous of those who can sleep through the night. he is revered for his scientific advances. he is interested in studying the movements of the stars he is proud and enthusiastic about his initial results.

Answers: 3

continue

You know the right answer?

19) You want to solve the system below by eliminating y. You multiply the first equation by 7. By wh...