Working alone, Jack can do a puzzle in 5 hours. With his brother's help, the two can do the same puzzle in 2 hours. How long wou

Answer:

ok __?__ equals 11 and ___ equals 3.55

Step-by-step explanation:

Start by subtracting 140 and 25 from 300, then divide by 11.95 which results in 11; subsequently, multiply 11 by 11.95 and deduct that from 135.

Answer:

A reasonable estimate for the constant of variation is 0.25 kWh daily.

Step-by-step explanation:

The problem provides us with the following:

• The graph shows electricity usage.

• The kilowatt-hour consumption of a clock radio directly correlates with the passage of days.
• The x-axis represents the number of days, while the y-axis indicates usage in kilowatt-hours.
• Some coordinates on the graph include: (0,0), (2,0.5), and (6,1.5)

Formula for the constant of variation:

By inserting values from the points (2,0.5) and (6,1.5), we arrive at:

As a result, the reasonable estimate for the constant of variation is 0.25 kWh per day.