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3 years ago

Solve the system by substitution y=x-8 y=2x-14

Mathematics

2 answers:

IrinaK [193]3 years ago

8 0

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(<em>6,-2)</em>

Equation Form:

Step-by-step explanation:

marishachu [46]3 years ago

7 0

Answer:

x = 6

y = -2

Step-by-step explanation:

6 - 8 = -2

2 x 6 = 12 - 14 = -2

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Solve the inequality 42<-6d

pentagon [3]

Answer:

d < - 7

Step-by-step explanation:

given

42 < - 6d ( divide both sides by - 6 )

Remembering to reverse the inequality symbol as a consequence

- 7 > d ⇒ d < - 7

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3 years ago

I’m slow , can i get help on this asap please ?

makkiz [27]

140°
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2 years ago

Determine the value of x so that line ℓ will be parallel to line m.

erastova [34]

∠2 = ∠7
4x+2 = 5(x-2)
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2 years ago

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If the second number is subtracted from the sum of the first number and 2 times the third number, the result is 1. The thrid num

weeeeeb [17]

Answer:

Step-by-step explanation:

$x,\ y,\ z-\text{three numbers}\\\\\left\{\begin{array}{ccc}(x+2z)-y=1&(1)\\z+2x=3&(2)\\x+3y+z=18&(3)\end{array}\right\\\\(2)\\z+2x=3\qquad\text{subtract}\ 2x\ \text{from both sides}\\z=3-2x\qquad(*)\\\\\text{Substitute}\ (*)\ \text{to (1) and (3)}\\\\\left\{\begin{array}{ccc}x+2(3-2x)-y=1&\text{use the distributive property}\\x+3y+(3-2x)=18\end{array}\right$

$\left\{\begin{array}{ccc}x+(2)(3)+(2)(-2x)-y=1\\x+3y+3-2x=18&\text{subtract 3 from both sides}\end{array}\right\\\left\{\begin{array}{ccc}x+6-4x-y=1&\text{subtract 6 from both sides}\\(x-2x)+3y=15\end{array}\right\\\left\{\begin{array}{ccc}(x-4x)-y=-5\\-x+3y=15\end{array}\right\\\left\{\begin{array}{ccc}-3x-y=-5&\text{multiply both sides by 3}\\-x+3y=15\end{array}\right$

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2 years ago

Angie, a student in an advanced statistics course, was given an algebra test and she scored

Phoenix [80]

Answer:

C. No because Angie is not representative of the population in the algebra class

Step-by-step explanation:

I just took the test and this was correct

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2 years ago

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