Answer: 133 minutes
Step-by-step explanation:
Hi, to answer this question we have to write an equation for the cost of each company:
The cost is equal to the fixed fee (40) plus the product of the cost per minute talking on the phone (0.25) and the minutes spent talking in the phone in the month (m)
40 + 0.25 m
The cost is equal to the fixed fee (60) plus the product of the cost per minute talking on the phone (0.10) and the minutes spent talking on the phone in the month (m)
60+ 0.10m
- Since both costs must be equal:
40 + 0.25 m = 60+ 0.10m
Solving for m:
0.25m-0.10m = 60-40
0.15m = 20
m = 20/0.15
m= 133.34 minutes
= 133 minutes (rounded)
Mathematicians do party but its not like a regular party lots of people go to.
Answer:
14.2 years
Step-by-step explanation:
The multiplier of the population each year is 1 +5% = 1.05, so after n years the population has been multiplied by 1.05^n. You want to find the value of n that makes this expression equal to 2:
2 = 1.05^n
log(2) = n·log(1.05) . . . . . take logarithms
log(2)/log(1.05) = n ≈ 14.2
Growing at a rate of 5% per year, it will take about 14.2 years for the population to double.
40 and 35 are the length and the width of the Rectangle
65g=0.065kg
0.065x100= 6.5kg of peaches
6.5x6= $39