No. you shouldn't change it to addition because that would manke it much more confusing after
You have a function that for every well-behaved day adds $1. Let's call x the well-behaved days and y the amount of money in the fund. We can then make a table that looks like this:
X (well behaved days) , Y (money in fund)
0, 0
1, 1
2, 2
3, 3
4, 4
5, 5
If you take these as points: (0,0), (1,1), (2,2) , ... and plot them you get a line. The relationship is linear.
Another way you can tell is that y = x which is the equation of a line with slope = 1 and y-intercept 0 although for this case we only focus on x values that are 0 or greater because there would not be a negative number of well-behaved days.
A third way you can tell is that the money in the fund increases by the same amount (1) for each well-behaved day. That is, it's rate of change is constant (always 1) and so it is linear...it has a constant rate of change or a constant slope.
A possible value of sin would be 0.73
18 - (1/2×18 + 1/3×18)
18 - (9 + 6)
18 - 15 = 3 pints left
7 3/4 - 3 = 4 3/4
the answer is 4 3/4 pints (or 5 pints if they can only buy whole ones)
X=20° is your answer
Step-by-step explanation:
X+3x+10°=90°
4x+10°=90°
4x=(90-10)°
X=80/4
X=20°