Answer:
The expression that represents his total time is given by "t = 7.5/s" where s is his speed against the wind.
Step-by-step explanation:
In order to solve this problem we will assign a variable to Curtis speed on the first leg of the trip, this will be called "s". Since the speed on the first part is "s" and the speed on the second part is 20% higher, then the speed on the second part is "1.2s". Each leg of the course is 9 miles long, therefore the time it took to go each way is given by:
time = distance/speed
First part:
t1 = 9/s
Second part:
t2 = 9/1.2s = 7.5/s
The expression for the whole course is the sum of each, so we have:
t = t1 + t2
t = 9/s + 7.5/s
t = (9 + 7.5)/s = (16.5)/s
Answer:
Step-by-step explanation:
B
Your answer is 2/5 theoretically
Answer:
0.75:1
Step-by-step explanation:
Hello!
Slope-intercept form is written as y = mx + b. In this form, m is the slope and b is the y-intercept. Remember to use SADMEP when solving algebraic equation. This main goal is to get y by its self.
(SADMEP = subtraction, addition, division, multiplication, exponents, parentheses)
8x - 3y + 24 = 48 (subtract 24 from both sides)
8x - 3y = 24 (subtract 8x from both sides)
-3y = -8x + 24 (divide both sides by 3)
y = 8/3x + -8
Therefore, the final answer is y = 8/3x + -8.
