Answer:
Eight pieces
Step-by-step explanation:
Create a number line running from 0 to 4/6.
Label the divisions as 1/6, 2/6, 3/6, and 4/6.
Divide each section in half to get small pieces of length 1/12.
Starting at zero, move to 4/6 on the number line and count the number of pieces as you go.
You count eight pieces, so Dario has eight pieces of rope.
Think of this situation as a system of equations.
let y be the price of hotdogs
let x be the price of hamburgers
5y + 2x = 8
2y + 5x = 9.50
now use your solution method of choice
substitution, elimination, matrices, etc
The answer is 25. 20-30= -10+15=5x5=25
Answer:
She swims for 3 hours each morning.
Step-by-step explanation:
To determine the number of hours that Kenny swims in the morning, it is necessary to perform the following equation, taking into account that he swims 5 days a week for a total of 30 hours a week, and that in the afternoon he swims for 3 hours:
X + 3 x 5 = 30
X + 3 = 30/5
X = 6 - 3
X = 3
Therefore, Kenny swims for 3 hours in the morning.
Answer:
198 and 612
Step-by-step explanation:
We are given that the scores are normally distributed.
The mean of the data is 405.
The standard deviation of this data is 69.
Empirical rule states that for a normally distributed data that
- about 68% data lies between
that is one standard deviation from mean.
- about 95% data lies between
that is one standard deviation from mean.
- about 99.7% data lies between
that is one standard deviation from mean.
Thus, 99.7% of data will lie between 
that is it will lie in the range (198,612)
