Acar wash business charges $10 per basic wash and $15 per ultimate wash. the total sales was $980 on a certain day. the variable x represents the number of basic washes and y represents the number of ultimate washes.

which equation models this situation?

10x + 15y = 980

Step-by-step explanation:

Here, x represents the number of basic washes and y represents the number of ultimate washes,

Since, the charge is $10 per basic wash and $15 per ultimate wash.

So, the total charges = ( 10x + 15y ) dollars

According to the question,

Total charge is $ 980,

⇒ 10x + 15y = 980

which is the required equation.

the answer is 14ft

step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is