The answer is D worker A earns more per day but less per hour
Answer:
0
Step-by-step explanation:
The slope is the variation of the inclination of a straight line.
It's measured by calculating the variation of the y values (rise) over the variation of the x values (run). Let's take 2 points over that line: (0,-3) and (2,-3).
We see the variation of y values is 0: -3 - -3 = 0
The variation of x values is 2: 2 - 0 = 2
So, the slope is 0/2, so 0.
Horizontal lines don't have a slope because they don't vary in the y values... just like a flat land isn't a hill, there's no slope.
Answer:
169.65
Step-by-step explanation:
43.95x4= 175.80 175.80x3.5=6.15 175.80-6.15=169.65
You can get the number by dividing 19.2 by 0.40
The number is 19.2/0.40 = 48
Answer:
The country is saved 1.0647×10^10 kWh of electricity per year.
Step-by-step explanation:
Power saved per household = 60 W - 10 W = 50 W = 50/1000 = 0.05 kW
Power saved in 117,000,000 households = 117,000,000 × 0.05 kW = 5,850,000 kW
Number of hours the bulb is used per week = 35 hours
Number of hours the bulb is used per year (52 weeks) = 52 × 35 = 1,820 hours
Quantity of electricity saved per year = 5,850,000 kW × 1,820 hours = 1.0647×10^10 kWh
