Answer:
B) 2w + 3c = 9.45 AND 4w + 5c = 14.75
Step-by-step explanation:
Let us represent:
Number of water bottles = w
Number of bag of chips = c
Hence:
Samaia buys two water bottles and three bags of chips for $9.45.
2w + 3c = 9.45......Equation 1
Abdullah goes to the same store and buys four water bottles, as Samaia, and five bags of chips, same as ones Samaia bought, for $14.75.
4w + 5c = 14.75......Equation 2
Which choice below accurately represents a system of equations, w for water bottles and c for chips, for this scenario?
Option B) 2w + 3c = 9.45 AND 4w + 5c = 14.75 is the correct option.
X = 10 + square root of 110. OR...
X = 10 - square root of 110
Answer:
<em>Mathew will take 5 seconds to ride down the hill.</em>
Step-by-step explanation:
Given equation is:
Matthew is cycling of a speed of 4 meters/second. So,
When he starts down a hill, the bike accelerates at a rate of 0.4 m/s². So,
The vertical distance from the top of the hill to the bottom of the hill is 25 meters. So, meters.
Plugging the values into the above equation, we will get......
Using quadratic formula, we will get.......
<em>(Negative value is ignored as the time can't be negative)</em>
So, Mathew will take 5 seconds to ride down the hill.