15, median is the number in the middle, (i.e. median of 3, 4, 8, 9, 10, is 8.)
Answer:
D. $2,511
Step-by-step explanation:
First off, we need to write down the facts we know.
There are about 52.177 weeks in a year
Cesar works 28 hours each week
Cesar makes $23 an hour
There are 12 months in a year
Cesar has $3,360 after his monthly expenses
To figure out how many hours are in a "work year," multiply the number of work hours in a week by the number of weeks in a year. In other words, multiply Cesar's 28 hour work week by about 52.177 weeks. That makes 1,456 hours in his work year. That means he makes $33,492 a year. If you multiply $2,511 by the months in a year (12), you get $30132. Finally, subtract his annual salary by $30132 to get $3,360, which is what was left of Cesar's earnings after paying all of his monthly expenses.
Answer:
23
Step-by-step explanation:
Since 2/10 = 4/20, we know that a-3 = 20, so a = 20 + 3 = 23.
7/15 / (3/5)
Flip the 2nd fraction and multiply:
7/15 * 5/3
Multiply the numerators and denominators together:
35/45
Divide 5 to the numerator and denominator:
35 / 5 = 7
45 / 5 = 9
7/9
( 3x - 12 / 9x^2 ) ÷ ( x - 4 / 3x ) =
( 3x - 12 / 9x^2 ) × ( 3x / x - 4 ) =
( 3 ( x - 4 ) / 3 × 3x × x ) × ( 3x / x - 4 ) =
( x - 4 / 3x × x ) × ( 3x / x - 4 ) =
( x - 4 ) × 3x / ( x - 4 ) × 3x × x =
1 / x
Thus the correct answer is option A .
