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3 years ago

Complete the equation of the line through (2,1)and (5,-8)

1 answer:

4 0

$m = \frac{ - 8 - 1}{5 - 2} \\ = \frac { - 9}{3} \\ m = - 3 \\ y = mx + c \\ 1 = - 3(2) + c \\ c = 7 \\ y = mx + c \\ y = - 3x + 7$

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Justin earned $50 mowing yards and $19 washing cars. He wants to divide his money into 3 equal accounts.How much will he put in

ivanzaharov [21]

Answer:

$23

Step-by-step explanation:

$50 + 19=69\\69/3=23\\Or -$23 in each account$

8 0

2 years ago

____________________

MaRussiya [10]

Step-by-step explanation:

the numbers of the yellow and white counters

= 288- 38 = 250.

the ratio of yellow to white = 1:4

so,

the numbers of the yellow counters =

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the numbers of the white counters =

4/(1+4) ×250 = 4/5 ×250 = 200

and the numbers of the red counters = 38

7 0

3 years ago

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Irina18 [472]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

a.) Initial cost of renting the car is $100

b.) rate of change is slope, that is :

$\dfrac{105 - 100}{100 - 0}$

$\dfrac{5}{100}$

$\dfrac{1}{20}$

$0.05$

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the equation will be :

$C = \dfrac{d}{20} + 100$

5 0

3 years ago

Anyone up that can help me

LekaFEV [45]

Answer:

Step-by-step explanation:

reflection

3 0

3 years ago

The slope of the line whose equation is 3y + 2x = 1 is: A.)-2/3 B.)-3/2 C.)1/3

mojhsa [17]

Answer:

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 3y + 2x = 1 into this form

Subtract 2x from both sides

3y = - 2x + 1 ( divide all terms by 3 )

y = - $\frac{2}{3}$ x + $\frac{1}{3}$ ← in slope- intercept form

with slope m = - $\frac{2}{3}$ → A

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3 years ago