Mathematics, 01.02.2021 21:40 tjyoder718

Malik solved this system of equations. 2 x + 4 y = 24. 5 x + y = 15.

As the first step, he decided to solve for x in the first equation because it has a small, even number for the coefficient. Jill told him there was a more efficient way. What reason can Jill give for her statement?
The variable y in the second equation has a coefficient of one so there will be fewer steps to the solution.
The variable x in the second equation has a coefficient of 5 so it will be easy to divide 15 by 5.
The variable y in the first equation is divisible by 2 so it will be the most efficient way to start.
The variable y in the first equation has a larger even number. When dividing by 4, the solution will be a smaller number.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 20:50, RyleyM

The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 16-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50

Answers: 3

continue

Mathematics, 22.06.2019 00:50, emmaraeschool

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.

Answers: 2

continue

Mathematics, 22.06.2019 02:00, Pbaer4861

Atriangle has vertices of (0,3.5), (3,1.5), (0, -1.5). if it is dilated with center at the origin, and a scale factor of 2, what will be the coordinates of the image?

Answers: 3

continue

Mathematics, 22.06.2019 02:20, IkweWolf1824

Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.

Answers: 1

continue

You know the right answer?

Malik solved this system of equations. 2 x + 4 y = 24. 5 x + y = 15.

As the first step,...