Question

The average household uses 10, 400 kilowatt-hours (kWh) of energy yearly which can be provided by 28 standard sized solar panels. The energy in kWh

used, y, is proportional to the amount of solar panels,

Determine the constant of proportionality. y/x

, rounded to the nearest whole number.

Answer 1

The constant of proportionality can be calculated by dividing 10,400 kWh by 28 solar panels. This gives us the equation y/x = 10,400/28. When we solve this equation, we get 375 kWh/solar panel. Therefore, the constant of proportionality is 375 kWh/solar panel, rounded to the nearest whole number.