Help I’ll give you brainliest

Shortly after creating a car washing business, you made $65 washing ten

nevsk [136]

Answer:

A) For the slope;

Rate of change in profit per change in number of cars washed = 10

B) when he had not washed any car, he was in debt of of $35

C) When he made $255, he had washed 29 cars

Step-by-step explanation:

Slope intercept equation of a line is;

y = mx + c

you made $65 washing ten

cars. Thus, x = 10 and y = 65

So, 65 = 10m + c - - - - (eq 1)

Then after fifteen cars, you made $115.

Thus, x = 15 and y = 115

So; 115 = 15m + c - - - - (eq 2)

Subtract equation 1 from eq(2) to get;

115 - 65 = 15m - 10m + c - c

50 = 5m

m = 50/5

m = 10

Putting 10 for m in eq 1 gives;

65 = 10(10) + c

65 = 100 + c

c = 65 - 100

c = -35

A) Since the slope is m = 10 and slope is m = Δy/Δx, it means that;

Rate of change in profit per change in number of cars washed = 10

B) c = -35 is the y-intercept.

This means when x = 0, y = - 35.

It implies that when he had not washed any car, he was in debt of of $35

C) since we have the slope and intercept, equation is;

y = 10x - 35

If he has made $255,then we have;

255 = 10x - 35

255 + 35 = 10x

290 = 10x

x = 290/10

x = 29 cars washed.

7 0

3 years ago

0.1 is 10 times as much as

Vedmedyk [2.9K]

0.1 is ten times as much as 0.01 .

5 0

3 years ago

V plus 9 over 3 = 8 it’s suppose to be two step equations

Evgen [1.6K]

Answer:

v= 15

Step-by-step explanation:

all work is shown and pictured

6 0

4 years ago

A cinama has 3 screens on last saturday the was 500 visitors 40% went to screen 1 25% went to screen 2 and the rest to screen 3

olga nikolaevna [1]

Answer:

The answer to your question is 200 visitors went to screen 1

125 visitors went to screen 2

175 visitors went to screen 3

Step-by-step explanation:

Data

3 screens

total number of visitors = 500

40% screen 1

25% screen 2

rest screen 3

Process

1.- Calculate the 40% of 500

500 visitors ------------------- 100%

x ------------------- 40%

x = (40 x 500) / 100

x = 20000/100

x = 200 visitors

2.- Calculate the 25% of 500

500 visitors ------------------- 100%

x ------------------- 25%

x = (25 x 500) / 100

x = 12500/100

x = 125

3.- Calculate the number of visitors to screen 3

500 - 200 - 125

175

6 0

3 years ago

Suppose Wal-Mart stock is selling at $59 a share and Mattel stock is selling at $28 a share. Amy has a maximum of $6000 to inves

Ulleksa [173]

Answer:

88 shares of Wall-Mart stock,

a) Step-by-step explanation, 22 shares of Mattel stock. b) $192

Given:

Suppose Wall-Mart stock is selling at $59 a share and Mattel stock is selling at $28 a share.

Amy has a maximum of $6000 to invest.

She wishes to purchase four times as many shares of Wall-Mart as of Mattel.

Only whole shares of stock can be purchased.

Question asked:

a) How many shares of each will she purchase?

b) How much money will be left over?

Solution:

Selling price of each share of Wall-Mart stock = $59

Selling price of each share of Mattel stock = $28

Let number of shares of Mattel stock purchased = $x$

Then, number of shares of Wall-Mart stock = $4x$

Total money invested =$6000

Shares of Mattel stock $\times$ $28 + Shares of Wall-Mart stock $\times$ $59 = $6000

$28\times x+59\times4x=6000\\28x+236x=6000\\264x=6000$

Dividing both sides by 264

$x=22\frac{192}{264}$

That means, total 22 shares of Mattel stock is purchased and 192 is the money left over:-

Number of shares of Wall-Mart stock = $4x$ = $4\times22=88$

Total amount spent on Mattel stock shares = 22 $\times$ $28 = $616

Total amount spent on Wall-mart stock shares = 88 $\times$ $59 = $5192

Total amount spent on both shares = $616 + $5192 = $5808

Money left over = $6000 - $5808 = $192

a) He will purchase 88 shares of Wall-Mart stock and 22 shares of Mattel stock.

b) Money left over is $192.

6 0

4 years ago