Answer:
Step-by-step explanation:
From the question, Diana wants her total bill to be less than $50.
Diana pays a fixed monthly bill of
$39 for her mobile phone and an additional
$0.15 per minute for phone internet service.
The bill Diana pays for m minutes of using the internet is $0.15m in a month.
The total monthly bill becomes,
The maximum bill she wants to pay is $50.
This inequality can be solved to determine the number of available minutes.
Answer:
74
x
+
185
Step-by-step explanation:
The value of the 24th term is 16.
<h3>Arithmetic progression:</h3>
where
a = first term
d = common difference
n = number of terms
Therefore,
6 = a + 3d
8 = a + 7d
let's find a and d
2 = 4d
d = 2 / 4
d = 1 / 2
6 = a + 3 / 2
a = 6 - 3 /2
a = 4.5
Therefore, the 24th term can be found as follows;
24th term = 4.5 + 23(0.5)
24th term = 4.5 + 11.5
24th term = 16
learn more on arithmetic progression here; brainly.com/question/9882454
Answer:
225
505
Step-by-step explanation:
We know that the pH of a solution is:
pH = -log[H+]
Let c be the fraction of coffee in the drink and m be the fraction of milk in the drink. Because these are the parts of a whole, they add up to 1. c + m = 1
pH of coffee = 5
pH of milk = 6
[H+ in solution] = c[H+ in coffee] + m[H+ in milk]
[H+ solution] = 10^(-5.8) = 1.58 x 10⁻⁶
[H+ coffee] = 10^(-5) = 1 x 10⁻⁵
[H+ milk] = 10^(-6) = 1 x 10⁻⁶
1.58 x 10⁻⁶ = c(1 x 10⁻⁵) + (1 - c)1 x 10⁻⁶
c = 0.064
m = 0.936
Amount of coffee = 14 x 0.064 = 0.896 oz
Amount of milk = 14 - 0.896 = 13.104 oz
