Mathematics, 25.07.2021 01:30 abby6628

Solve the following system of equations using the elimination method 8x + 2y= 30

7x+2y= 24

A) (3.-12)
B) (-53)
C) 1-6,-5)
D) 16,9)

Answers

Answer from: yushan2751

(6, -9)

Step-by-step explanation:

let: 8x + 2y = 30 be equation (a).

7x + 2y = 24 be equation (b).

${ \bf{equation \: (a) - equation \: (b) : }}$

$(8 - 7)x + (2 - 2)y = (30 - 24) \\ x + 0y = 6 \\ x = 6$

substitute for x in equation (a):

$(8 \times 6) + 2y = 30 \\ 48 + 2y = 30 \\ y = - 9$

Answer from: Quest

step-by-step explanation:

wrgasadvauoyfaiua-00uhf

Answer from: Quest

Cis your correct answer
Asap 30 points the amount of money sheryl makes in a day is directly proportional to the amount of h

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:30, tyler5016

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Answers: 2

continue

Mathematics, 21.06.2019 20:00, songulakabulut1992

Maurice has 54 fewer comic books than rebecca. they have 130 comic books together .how many comic books are in maurices collection ? how many comic books are in rebeccas collection

Answers: 1

continue

Mathematics, 21.06.2019 20:00, jennywarmJones

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Answers: 1

continue

Mathematics, 21.06.2019 21:30, Joejoe1813

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Answers: 1

continue

You know the right answer?

Solve the following system of equations using the elimination method 8x + 2y= 30

7x+2y=...