In order to encourage energy saving, a city power company has stipulated the following calculation method: the monthly electricity consumption is not more than 100 kwh, and the charge is 0.52 yuan per kilogram hour If the monthly electricity consumption exceeds 100 kwh, the excess part will be charged at 0.6 yuan per kWh. Xiao Ming's family paid 64.4 yuan in October, and how much kwh is the electricity consumption? (the result is kept in integer),

In order to encourage energy saving, a city power company has stipulated the following calculation method: the monthly electricity consumption is not more than 100 kwh, and the charge is 0.52 yuan per kilogram hour If the monthly electricity consumption exceeds 100 kwh, the excess part will be charged at 0.6 yuan per kWh. Xiao Ming's family paid 64.4 yuan in October, and how much kwh is the electricity consumption? (the result is kept in integer),

64.4-52 (total cost of the first 100 KWH) = 12.4
12.4 / 0.6 ≈ 20.6666 (KWH)
So the total is 100 + 21 kwh = 121 kwh

In order to encourage energy saving, a municipal power company has stipulated the following calculation method of electricity charge: 0.52 yuan per kilowatt hour if the monthly electricity consumption does not exceed 100 kilowatt hours; 0.6 yuan per kilowatt hour if the monthly electricity consumption exceeds 100 kilowatt hours? Xiao Ming's family paid 64.6 yuan for electricity in October, so how many kilowatt hours of household electricity?

152 = 100 + 52100 × 0.52 + 52 × 0.6, = 52 + 31.2, = 83.2 (yuan); suppose Xiaoming's household electricity x kwh, because Xiaoming's household electricity exceeds 100 kwh, the partial electricity charge is 0.6 (X-100) yuan; according to the meaning of the question, the equation is: 0.6 (X-100) + 0.52 × 100 = 64.6, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 0.6x-60+52=64.6，                0.6x-8=64.6，              0.6x-8+8=64.6+8，                  0.6x=72.6，   &A: Xiaoqiang's monthly fee is 83.2 yuan, Xiaoming's household electricity is 121 kwh

In order to encourage energy saving, a municipal power company has stipulated the following calculation method of electricity charge: 0.52 yuan per kilowatt hour if the monthly electricity consumption does not exceed 100 kilowatt hours; 0.6 yuan per kilowatt hour if the monthly electricity consumption exceeds 100 kilowatt hours? Xiao Ming's family paid 64.6 yuan for electricity in October, so how many kilowatt hours of household electricity?

152 = 100 + 52100 × 0.52 + 52 × 0.6, = 52 + 31.2, = 83.2 (yuan); suppose Xiaoming's household electricity x kwh, because Xiaoming's household electricity exceeds 100 kwh, the partial electricity charge is 0.6 (X-100) yuan; according to the meaning of the question, the equation is: 0.6 (X-100) + 0.52 × 100 = 64.6, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 0.6x-60+52=64.6，                0.6x-8=64.6，              0.6x-8+8=64.6+8，                  0.6x=72.6，   &A: Xiaoqiang's monthly fee is 83.2 yuan, Xiaoming's household electricity is 121 kwh