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
So simple.
18.
If you need help to find why, here's a link
http://www.geteasysolution.com/what-is-30-percent-of-60
The answer is 80! If you ever see any angle like that where it’s just two lines (I don’t know how to explain it/forgot what it’s called) it will be the same as the other angle.
Step-by-step explanation:
2x-y=8
x+y=20
------------
3x=28
×=28÷3=9.3
so
9.3+y=20
y=20-9.3
y=20.7
Answer: $4.50 for 9 apples
Step-by-step explanation: To find out how much it is for 1 apple, we need to find the unit price of 1 apple which is the cost per apple.
Since we know that it costs $4 for 8 apples, to find the cost for 1 apple, we need to divide 8 into $4 or 4 divided by 8 which is 0.5 of 50 cents per apple.
Since we know that it costs 50 cents per apple, to find the cost for 9 apples, we will need to multiply .50 by 9.
(.50) (9) = 4.50
Therefore, it will cost $4.50 for 9 apples.
