The lowest term for 2/11 is 2/11 because it can not be reduced. The lowest term for 7/11 is 7/11 to because it can not be reduced
Answer: the remaining credit after 79 minutes of call is $15.52
Step-by-step explanation:
let x represent the number of minutes of call.
Let y represent the remaining credit after x minutes of call.
If we plot y on the vertical axis and x on the horizontal axis, a straight line would be formed. The slope of the straight line would be
Slope, m = (17.2 - 19.84)/(65 - 43)
m = - 2.64/22 = - 0.12
The equation of the straight line can be represented in the slope-intercept form, y = mx + c
Where
c = intercept
m = slope
To determine the intercept, we would substitute x = 65, y = 17.2 and m = - 0.12 into y = mx + c. It becomes
17.2 = - 0.12 × 65 + c
17.2 = - 7.8 + c
c = 17.2 + 7.8
c = 25
The linear function becomes
y = - 0.12x + 25
Therefore, the remaining credit after 79 minutes of call is
y = - 0.12 × 79 + 25
y = - 9.4 + 25
y = 15.52
Since the line is horizontal (flat) the gradient, m, is zero (0). c is the y-intercept and in this case -4.
Equation of a line: y = mx + c
since m = 0 then,
y = c = -4
therefore y = -4 ...is the equation.
7-6=1
20-19=1
Hope this helps
Answer:
8.16 > 8.150
Step-by-step explanation:
