Answer:
Let's say that the whole book have 5a pages.
First day: a + 12
Second day: (4a)1/4+15= a + 15
Third day: (1/3)[ 4a - (a+15)] +18= a + 13
Forth day: 70
So we get this:
(a + 12) + (a + 15) + (a + 13) + 70 = 5a
a + 12 + a + 15 + a + 13 + 70 = 5a
3a + 110 = 5a
3a - 5a = -110
-2a = -110
a = 55
5a = 5(55) = 275
So the total pages are in the book is:
275 pages
The missing number is 6 because half of 18 is 9 and half of 12 is 6
Answer:
$13.94
Step-by-step explanation:
$14.93 + $11.13= 26.06
$20+$20= $40.00
$40.00 - 26.06 = $13.94
Hope this helps!
Answer:
24
Step-by-step explanation:
We are given the logarithmic expression:
We are also given by the problem that:
From the expression, we will simplify it using two properties:
Therefore, apply the properties to simplify:
Next, we will use another property to take an exponent as a coefficient:
Hence:
Substitute what are given in the problem and the answer will be:
Hence, the answer is 24.
Answer:
47% and 62%
Step-by-step explanation:
1. Drink
The probability that a student buys a drink is 0.47
Step-by-step explanation:
The probability that a student buys a drink will be given by;
( the number of students who bought a drink)/(the total number of students)
We are told that;
Of the 100 students who came to the movie, 62 bought popcorn and 47 bought a drink. Therefore, the required probability is;
47/100= 0.47
0.47 = 47%
2. Popcorn
For popcorn probability, it's basically the same.
The probabilty that a student buys popcorn is 0.62
The probability that a student buys popcorn will be given by;
( the number of students who bought popcorn)/(the total number of students)
So therefore,
62/100 = 0.62
0.62 = 62%