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swat32
3 years ago
6

(2x -3) + (4c + 20) i need help

Mathematics
1 answer:
Stella [2.4K]3 years ago
4 0

Answer:

=2x+4c+17

Step-by-step explanation:

(2x-3)+(4c+20)

=2x-3+4c+20

=2x+4c-3+20

=2x+4c+17

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Substitution method
andriy [413]
1. y=7-3x
4x+2(7-3x)=16
4x+14-6x=16
-2x=2
x=-1
-3+y=7
y=10
(-1,10)

2. x=2y
2(2y)+2y=4
4y+2y=4
6y=4
y=2/3
x-2(2/3)=0
x-4/3=0
x=4/3
(4/3,2/3)
8 0
4 years ago
Read 2 more answers
Please help
ratelena [41]

Answer:

rom the relation for linear regression formula, Y = b·X + a, we have ;

For car 1

ΣXY = 102780

(ΣX)² = 36

ΣX = 6

ΣY = 52390

ΣX² = 14

N = 3

b = -1000

a = 19463

Y = -1000×X + 19463

For Car 2

ΣXY = 102539.8

(ΣX)² = 36

ΣX = 6

ΣY = 52346.6

ΣX² = 14

N = 3 .

b = -1076.7

a = 19602

Y = -1076.7×X + 19602

Step-by-step explanation:

part B ^

8 0
3 years ago
What are the slope and the y-intercept of the linear function that is represented by the equation y=9x-2? The slope is –2, and t
MatroZZZ [7]

Hello there!

Answer:

The slope is 9, and the y-intercept is –2

Step-by-step explanation:

The equation is y = 9x - 2

This follows the equation y = mx + b

Where as:

m = slope

b = y-intercept

When you know this, you would figure out that 9 is in the same place as m, and -2 is in the same place as b.

The y-intercept would not be a positive 2 because when there's a minus sign next to the number in the y-intercept spot, then you would have to bring that over to the number. We can also say the minus sign belongs to the 2, making it a -2.

With the information we know now, we can say that the slope of the equation is 9, and the y-intercept would be -2.

Therefore, giving your answer as "The slope is 9, and the y-intercept is –2"

6 0
4 years ago
Renee is a slaes associate at a store.She earns $80 a week plus a 15% commission on her sales . Last week,she sold $200 worth of
alex41 [277]
Renee earns a 15% commission on her $200 sales.
0.15 * 200 = $30
So, she earns 30 dollars from commission.

She also earns $80 a week, which makes a total of 80 + 30 = $110

Hence, the answer is $110
5 0
3 years ago
1.
Phoenix [80]

Answer:

C.    Graph c

Step-by-step explanation:

I got it correct

6 0
3 years ago
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