15 15 15 15 15 15 15 15 15 15
Answer:
0.333n + 28 ; 33.3 ; $41.653
Step-by-step explanation:
For the best fit line :
The slope of the graph :
Drawing a right angled triangle at any point on the best fit line :
Gradient = (y2 - y1) / (x2 - x1)
Gradient = (45 - 30) / (50 - 5)
Gradient = 15 / 45
Gradient = 0.333
Intercept :
Where best fit line crosses the y - axis = 28
b = 0.333n + 28
The extra cost of each extra call made made is the slope of the graph :
$0.333 = 33.3 cents
Estimated cost of 41 calls
b = 0.333(41) + 28
b = $41.653
Kindly note that, the values used were obtained from a graph which isn't lined, therefore values taken may not be very accurate.
The multiplier effect<span> is the expansion of a country's </span>money<span> </span>
Answer:
Mila had $48 initially
Step-by-step explanation:
Let the amount of money they had be x
Mila spent $42; what is left would be x-42
Samuel spent $36: what is left would be x-36
So, what Mila had left is half of what Samuel has; that would be;
x-42 = 1/2(x-36)
2(x-42) = x -36
2x-84 = x -36
2x - x = 84 -36
x = $48
Answer:
1.25 litros.
Step-by-step explanation:
Dado que Demetrio compró dos litros de leche, y luego utilizó 3 cuartos de litro en un postre, para determinar cuánta leche le quedó se debe realizar el siguiente cálculo matemático:
2 - 3/4 = X
2 - 0.75 = X
1.25 = X
Así, tras utilizar 3 cuartos de litro de leche en un postre, a Demetrio le quedaron 1.25 litros de leche.