Answer:
Step-by-step explanation:
First, we write the rental cost with each company:
Company A
Company B
Where m: miles travelled
Now, we need to find "number of miles in a day at which the rental costs for Company A and Company B are the same". This means Pa = Pb. Then:
Solving the equation for m by taking 0.2m and 60 on both sides:
Finally, dividing 0.5 on both sides:
Let t = # of tricycles; let b = # of bikes.
# of trike wheels is 3t; # of bike wheels is 2b. Total number of wheels is 79, which equals 3t + 2b. t+b = 28, so t=28-b.
Subst. 28-b for t in the first equation:
3(28-b) + 2b = 79. Then 84-3b + 2b = 79, or 5 = b (answer)
There were (28-5) = 23 trikes, 5 bikes, and 28 seats.
Answer:
Step-by-step explanation:
The rule of exponents that dictates this to be solved is:
The power of 2/3 is on "x", NOT 7, so we use this property to write it as:
third answer choice is right,
x less than or equal to 5
hope this helps !!
I think the answer is D because its multiplying by 2 each time