The monthly cost will be $17.14
Step-by-step explanation:
Given that the monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes) then this can be presented in a table form as;
<u>Time in minutes (x)</u> <u>Cost in dollars (y)</u>
50 $12.55
102 $ 17.23
Take the values as ordered pairs to represent coordinates for points that satisfy the linear function
(50,12.55) and (102,17.23)
Finding the slope of the graph using these points
slope,m=Δy/Δx
m=Δy=17.23-12.55 =4.68
Δx=102-50=52
m=4.68/52 =0.09
Finding the equation of the linear function using m=0.09, and point (50,12.55)
m=Δy/Δx
0.09=y-12.55/x-50
0.09(x-50)=y-12.55
0.09x-4.5=y-12.55
0.09x-4.5+12.55=y
y=0.09x+8.05
So for 101 minutes , the cost will be;
y=0.09*101 +8.05
y=9.09+8.05 = $17.14
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Linear functions : brainly.com/question/11052356
Keyword : linear function
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Answer:
55
Step-by-step explanation:
Well you just plug in 10 as n.. and you get the equation:
Answer:
$3.215
Step-by-step explanation:
Total cost of the beads and pendants = $33.60
Total number of necklaces = 6
Cost of beads = $14.40
To find : cost of each pendant.
Total cost of pendants = $33.69 - $14.40
= $19.29
Now, cost of each pendant = $19.29/6
= $3.215
-log(5.4x10^-9) = 8.27 = 8.3
since 8.3 is greater than 7 it is basic
so the last answer is correct
Step-by-step explanation:
Simplifying mixed numbers
Following are the steps to simplify mixed fractions: Find the highest common factor (HCF) of numerator and denominator of the fraction part. Divide both the numerator and the denominator by HCF. The whole number part will remain the same.
