Soos is spending money at the average rate of $5 per day. After 9 days, he has $25 left. How much money did Soos have at the beginning (on day 0)?

 She had $70 at the beginning.

Step-by-step explanation:

Lets represent this situation as an equation where we will  use y to represent the amount of money left and x for the number of days.  

Using the formula  y = mx + b  , we can say b  will be the amount in 0 days because its the y intercept and the y intercept is when x is 0.  

m will be the rate of change and the rate of change will be -5 per day because he is spending.

In 9 days, he had $25 left  and we can also represent that by the point (9,25)  

Now input the values for x and y into the formula with the slope and solve for b.

y = mx + b

25 = -5(9) + b

25 =  - 45 + b    

+45    +45

 b = 70  

This means she started with $70.

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

answer: answer is c!

ok i got to organize the

3/15 and 12/55

3*

aha

3*4 equals 12 but not

a: no

b:

8/24 12/35

no

gautie

it's c

5/18 = 25/90

5*5=25

18*5 = 90

hope that you!

one more happy customer!

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step-by-step explanation: