Answer:
The first rate is 6 miles per hour
The final rate is 6+2 or 8 miles per hour
Step-by-step explanation:
We know d = rt where distance is equal to rate times time
First part
d1 = r * 1/3
Second part
d2 = (r+2)(3/4)
We know the total distance is 8 miles and is
d1+d2 = 8
r * 1/3 + (r+2)(3/4) = 8
Multiply each side by 12 to get rid of the fractions
12( r * 1/3 + (r+2)(3/4)) = 8*12
4r +(r+2) 9 = 96
Distribute
4r+ 9r +18 = 96
Combine like terms
13r +18 = 96
Subtract 18 from each side
13r+18-18 = 96-18
13r = 78
Divide each side by 13
13r/13 = 78/13
r=6
The first rate is 6 miles per hour
The final rate is 6+2 or 8 miles per hour
Answer:
6x^2 - x-1 im not sure but i think its right
Step-by-step explanation:
Answer:
Answer: $53.74, you can either take 1 percent off and multiply it by 7, or what you can do is find out what 10 percent and round it down.
Answer:
but what is question
you have only shown and done it
seriously
Answer:
see step-by-step
Step-by-step explanation:
It's not clear from your notation, so I will provide 2 answers.
3√(47x) = 24√(47)
3√(47)√x = 24√(47)
Divide both sides by √(47): 3√x = 24
Divide both sides by 3: √x = 8
Square both sides: x = 64
3√(47)x = 24√(47)
Divide both sides by √(47): 3x = 24
Divide both sides by 3: x = 8