If you would like to know how many hours will Lena need to work before she can afford to buy the computer, you can calculate this using the following steps:
$900 - $473 = $427
$427 / $7 = 61 hours of yard work
Result: Lena will need to work 61 hours before she can afford to buy the computer.
Answer:Line graphs can give a quick analysis of data. You're able to quickly tell the range, minimum/maximum, as well as if there are any gaps or clusters. This also means that it can easily observe changes over a certain period of time. When drawing them, you're able to use exact values from your data.
Step-by-step explanation:
Answer: 0.9738
Step-by-step explanation:
We assume that the scores follows a normal distribution.
Let
denotes the class average .
As per given we have,

Sample size : n= 12
The probability that a class of 15 students will have a class average greater than 70 on Professor Elderman’s final exam will be :

Hence, the correct answer = 0.9738
Answer:
Scenario 1 represents a greater speed
Step-by-step explanation:
scenario 1 - find equation of line on graph to compare
- use the points given to find the slope
rate = slope = (y2-y1)/(x2-x1) = (240-60)/(4-1) = 60
y intercept = 0
line equation -> y = 60x
for every mile, 60 miles are traveled
scenario 2 - interpret the equation
for every mile, 50 miles are traveled
Scenario 1 represents a greater speed
Seventy-two thousand five hundred