Mathematics, 20.01.2020 07:31 skyebrockbank

Which of the following are possible ways to eliminate a variable by multiplying first?

−x + 4y = 5
9x − 3y = 21

a. multiply the first equation by 3 and the second equation by 4.
b. multiply the first equation by 4 and the second equation by 3.
c. multiply the first equation by 3 and the second equation by 9.
d. multiply the first equation by 9 and the second equation by 4.
e. multiply the second equation by 9.
f. multiply the first equation by 9.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:00, johnnysteeler9934

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it. bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

Answers: 3

continue

Mathematics, 21.06.2019 16:50, fireman59937

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Answers: 1

continue

Mathematics, 21.06.2019 22:30, curlyysav536

Math question.. plz me .. best answer all

Answers: 3

continue

Mathematics, 21.06.2019 23:00, leverso

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

Answers: 1

continue

You know the right answer?

Which of the following are possible ways to eliminate a variable by multiplying first?

...