Answer:
$5,552.26
Step-by-step explanation:
First, set up an equation using exponential decay
Let y represent the cost and let x represent the number of years
y = 15,000(0.78)^x
Plug in 4 as x, and simplify:
y = 15,000(0.78)^4
y = 5,552.26
So, in 4 years, the car will be $5,552.26
Answer:
x = 2 and y = -2
Step-by-step explanation:
a) 5x-4y = 18
b) x+3y = -4
b) x = -3y - 4
a) 5 (-3y - 4) - 4y = 18 (substitution)
a) - 15y - 20 - 4y = 18
a) -19y = 18 + 20
a) y = 38/-19
y = -2
b) x + 3(-2) = -4
b) x - 6 = -4
x = 6-4 = 2
Answer:
Less than or equal to 35 minutes will be needed
Step-by-step explanation:
Given that:
1 lap requires = 7 minutes
So,
5 laps will require <= 7 * 5 = 35 minutes almost
So the minutes taken will be less than or equal to 35 as the word almost is used with (5) laps.
i hope it will help you!
Answer:
12$
Step-by-step explanation:
this is a helper
Answer:
The answer is x = 3
Step-by-step explanation:
5x + 9 = 24
5x +9 -9 = 24 - 9
5x = 15
x = 15/5 = 3
Therefore, x = 3
Kelly multiplied 5 to each side when she solved for x, which is incorrect.