Answer:
Option B. y = 2x; 20 feet
Step-by-step explanation:
1. Determination of the equation that represents the relationship.
Let y be the distance travelled.
Let x be the time taken.
Let K be the speed.
From the question given above, the following data were obtained:
Distance (y) = 80 ft
Time (x) = 40 s
Speed (k) =.?
Speed = Distance /time
K = y/x ......... (1)
K = 80/40
K = 2 ft/s
Substitute the value of k into equation 1
K = y/x
K = 2 ft/s
2 = y/x
Cross multiply
y = 2x
Therefore, the equation that represents the relationship is y = 2x
2. Determination of the distance travelled in 10 s.
Speed (k) = 2 ft/s
Time (x) = 10 s
Distance (y) =.?
y = 2x
y = 2 × 10
y = 20 ft
Therefore, the person will travel 20 feet in 10 seconds.
From the above calculations, the right answer to the question is
Option B. y = 2x; 20 feet
94. 7 pounds of grapes costs 10.43 dollars. Now, solve for the costs of 3 pounds of grapes.
There are different ways to solve this kind of situation. For my end, I will be showing the solution that I think is easier.
=> 7 pounds = 10.43 dollars.
Find the unit rate first
=> 10.43 dollars / 7 = 1.49 dollars per pounds.
Now, solve for the cost of 3 pounds
=> 1.49 * 3 = 4.47 dollars is the costs of 3 pounds of grapes.
Answer:
5x= 76.5-1.5
So, m=15m
Step-by-step explanation:
Answer:
<h2>0.583333333333</h2>
Step-by-step explanation:
we have 9 letters
3 vowels: A , E , I
6 consonant: B, C, D, F, G , H
Consider the event V : «choosing at least 1 vowel»
