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shtirl [24]
3 years ago
6

Write an equation that models the points (-1,4) and (3,2)

Mathematics
1 answer:
LenKa [72]3 years ago
5 0

Answer:

Step-by-step explanation:

y=mx+b

m=(y2-y1)/((x2-x1)=(2-4)/(3- -1)=-2/4=-.5

y=-.5(3)+b, using point (3,2)

2=-1.5+b

b=3.5

y= -.5x+3.5

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Solve the following equation<br>1) 2c + c + 12 = 78​
Annette [7]

Step-by-step explanation:

(2c+c) + 12 =78

3c + 12 = 78

78 - 12 = 66

66 ÷ 3 = 22

22 + 22 + 22 + 12 = 78

{ C = 22 }

4 0
3 years ago
Renata and her family go through an average of more than 15 cans of sparkling water each day. They buy cases of 24 cans at $3.50
kaheart [24]

Answer: The inequality required to express the above condition is   x     ≥    18.75

Step-by-step explanation:Renata and her family go through an average of more than 15 cans of sparkling water each day.

The number of cases of 24 cans of sparkling water.

We can take the number of cases to be x.

Each case is said to cost $3.50.

An inequality for the number of cases that Renata's family go through in 24 days can be written as

      x ≥            ⇒     x    ≥            ⇒   x ≥     18.75

Therefore the inequality required to express the above condition is

x     ≥    18.75

8 0
3 years ago
Write these expressions as simply as possible
harkovskaia [24]
So it is asking you to group like term so
x terms can be grouped/added/subtracted to other x terms, but not to x^2 or x^3 terms
x^2 terms to x^2 and so on so

1.  9-3k+5k=
9+(5k-3k)=
9+2k

2.  k^2+2k+4k=
k^2+(2k+4k)=
k^2+6k=
7 0
3 years ago
Read 2 more answers
A truck can be rented from Company A form ​$130 a day plus $0.30 per mile. Company B charges ​$50 a day plus $0.80 per mile to r
navik [9.2K]

Answer:

160 miles

Step-by-step explanation:

Company A form ​$130 a day plus $0.30 per mile

Company A = 130 + 0.30x

Company B charges ​$50 a day plus $0.80 per mile

Company B = 50 + 0.80x

Where,

x = number of miles

Equate the cost of company A and company B

130 + 0.30x = 50 + 0.80x

Collect like terms

130 - 50 = 0.80x - 0.30x

80 = 0.50x

Divide both sides by 0.50x

x = 80 / 0.50

= 160

x = 160 miles

The number of miles in a day at which the rental costs for Company A and Company B are the same is 160 miles

4 0
2 years ago
Cedric and doug each had an equal amount of money. After cedric spent $35 and doug spent $28, the ratio of cedrics money to doug
uysha [10]

Answer:

Each of them had $49 at first.

Step-by-step explanation:

Given:

Cedric and Doug each had an equal amount of money.

Let the number of money they had at first be x

Cedric spent = $35

Doug spent = $28

Cedric Money left = x-35

Doug Money left = x-28

the ratio of Cedric money to Doug money was 2:3

Hence the expression can be made as;

\frac{x-35}{x-28}=\frac{2}{3}

Now by cross multiplication method we get;

3(x-35)=2(x-28)

Now we will use distributive property to elaborate the same;

3x-105=2x-56

Combining common terms we get;

3x-2x=105-56

Using Subtraction property we get;

x= 49

Hence $49 they each had at first.

8 0
3 years ago
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