Write an equation based on the problem in the terms of x and solve the equation
first number + second number + third number = 240
x + x + 1 + x + 2 = 240
3x + 3 = 240
3x = 240 - 3
3x = 237
x = 237/3
x = 79
The smallest number, x, is equal to 79
Find the next two numbers
the second number = x + 1
the second number = 79 + 1
the second number = 80
the third number = x + 2
the third number = 79 + 2
the third number = 81
ANSWER: The three numbers are 79, 80, 81
Answer: a) 138.32 and b) 35 years approx.
Step-by-step explanation:
Since we have given that

So, Profit is given by

Difference in years of 1990 and 2020=30
So, Profit becomes :

(b) How long before the profit found in part (a) is predicted to double? (Round your answer to the nearest whole number.) years after 1990.
So, profit doubles , we get :

Hence, a) 138.32 and b) 35 years approx.
All you gotta do is multiply the cm by 15,
For 13) you'd do

14)
15)

then for 16)
Once you graph the equation, you will notice that the lines are actually the exact same. If they’re the exact same your answer must be...
C. Infinitely Many
12 I think because you take 22 divided by 1 and 5/6.