Answer:
Since the question says the number is positive,the number is 1
Step-by-step explanation:
x+x²=2
x²+x-2=0
(x+2)(x-1)=0
x=-2 or 1
Answer: A) 2.5 km/ hour
You divide 10/4 and get 2.5, so 2.5km an hour.
B) 6.25 km/ hour
You have 2.5km/ hour plus 10km/ hour OVER 2. This would equal 12.5 km over 2
You then get 6.25 from doing 12.5/2
Answer:
7
Step-by-step explanation:
16+5+16+5+16+5
Answer:
If a couple wants to do one hour, it would be $20.
Step-by-step explanation:
Since it is $100 for half an hour, you would multiply the cost by 2 to get the cost for one hour