Answer:
62
Step-by-step explanation:
Let x be the number of movies purchased. If each movie you purchase costs $3.50 dollars, this means that the total cost of x movies in one month is $3.50x
In addition, you have to pay $40 for satellite TV. We can now find an equation to find the total cost per month:
40 + 3.50x
Now, by hypothesis, you paid $57.50 during a month as a total bill.
Which means that 40 + 3.50x = 57.50
We need to find the number of movies purchased during that month, or, in mathematical words, we need to solve for x.
40 + 3.50x = 57.50
First, let's put the variables apart and the numbers apart by subtraction 40 from each side, so we get:
40 - 40 + 3.50x = 57.50 - 40
3.50x = 17.50
Now divide both sides by 3.50
(3.50x)/(3.50) = 17.50 / 3.50
x = 5
So, during that month, you purchased 5 movies.
Hope this helps! :)
Answer:
Step-by-step explanation:
V = pi r^2 h
V = 187
pi = 3.14
r = 3
h = ?
187 = 3.14 * 3^2 * h
187 = 3.14 * 9 * h
187 = 28.26 * h
187 / 28.26 = h
h = 6.62
Answer:
13
Step-by-step explanation:
1. Put 5 in for x. 2×5+3
2.10+3
3.13
Draw a right triangle with horizontal base length 2, vertical length 3.
Use pythagorean thm to find length of hypotenuse:
Now use SOH CAH TOA to find correct trig ratios:
The opposite side is always the vertical side ----> 3
The adjacent side is always the horizontal side ---> 2
SOH ---> sin = opp/hyp
CAH ----> cos = adj/hyp
TOA -----> tan = opp/adj
