Answer:
<h3>9x²-3x+1</h3>
Step-by-step explanation:
The rate of the change of the car is is its speed.
Speed = distance/time
Given
Distance = 27x³-9x²+3x
Time = 3x hours
Speed = 27x³-9x²+3x/3x
factor out 3x from the numerator:
Speed = 3x(9x²-3x+1)/3x
Speed = 9x²-3x+1
Hence the rate of the car is 9x²-3x+1
Answer:
A. 0.60
Step-by-step explanation:
make a proportion so
36 over 60 = x over 100
36*100= 3600
3600/60
60
.60
2x-25=x+5
x=30
30+5=35
180-35=145
9y+28=145
9y=117
y=13
I hope help you this question
Answer:
-32
Step-by-step explanation:
you have to be in the negatives because 22 is bigger than 10.
Tip that will save you time:
when you have an equation like this just add the two numbers together and then add a negative sign :D
22+10= 32
-32
Step-by-step explanation:
Joe's climbing rate is not constant
3 × 2 = 6
8 × 1.5 = 12
12 × 1.1666666667 = 14
Time when climber reaches 30ft is unknown because climbing rate is not constant
Zas's climbing rate is 2.5
2 × 2.5 = 5
4 × 2.5 = 10
12 × 2.5 = 30
At 12 seconds, Zas reaches 30 feet.
Stephen's climbing rate is 4
2 × 4 = 8
4 × 4 = 16
6 × 4 = 24
30 ÷ 4 = 7.5
7.5 × 4 = 30
At 7.5 seconds, Stephen reaches 30 feet.
