Answer:
Douglas can race the go-karts at least 3 times.
Step-by-step explanation:
Given that:
Worth of game card = $20
Cost of go-kart = $3.50 each time
Amount Douglas wants to left = $7.75
Let,
x be the times Douglas can ride go-kart.
20 - 3.50x ≤ 7.75
-3.50x ≤ 7.75 - 20
-3.50x ≤ -12.25
3.50x ≤ 12.25
Dividing both sides by 3.50

Hence,
Douglas can race the go-karts at least 3 times.
You would want to multiply equation a by -5 so you can eliminate by addition
(Put what the first number is) x (the previous number) + 8 + 12 = ?
50 cm = 1/2 m
3 m ÷ 1/2 m = 6
It will take him six days.
Answer:
A = a + b / 2 x h
Step-by-step explanation:
Area is equal to side one plus side two divided by two then you multiply by the height of the trapezoid. Hope this helps!