subject
Mathematics, 30.04.2021 01:00 blaizelange2573

A system of equations is shown. x−y=−8
x+y=4
Which is a method that can be used to eliminate a variable? Select all that apply.

a)Add the terms in the bottom equation to the terms in the top equation to eliminate y

b)Multiply the terms in the bottom equation by 2 and add the resulting terms in the top equation to the terms in the top equation to eliminate x

c)Subtract the terms in the top equation from the terms in the bottom equation to eliminate x

d)Multiply the terms in the bottom equation by 4 and subtract the resulting terms in the bottom equation from the terms in the top equation to eliminate y

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 12:30, BigDaddy1220
Autility company burns coal to generate electricity. the cost c(p), (in dollars) of removing p percent of the some stack pollutants is given by c(p)= 85000p/100-p a) find the cost to remove 30% of the pollutant b) find where the function is undefined
Answers: 3
image
Mathematics, 21.06.2019 17:30, 5001Je
Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.
Answers: 1
image
Mathematics, 21.06.2019 20:30, nosugh
If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.
Answers: 2
image
Mathematics, 21.06.2019 21:00, dyp
Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x
Answers: 1
You know the right answer?
A system of equations is shown. x−y=−8
x+y=4
Which is a method that can be used to eli...

Questions in other subjects: