77
the answer is 77
for every 42 there is 18
42:18 simplify
7:3
7+3=10
110/110=11
7 times 11
The question is incomplete. Here is the complete question:
Denise earns $30 an hour. She wants to purchase a computer that costs $2000. Create and solve an inequality to determine the least amount of hours she must work in order to be able to purchase the computer.
Answer:
Denise has to work at least 67 hours in order to buy a computer that costs $2000.
Step-by-step explanation:
Given:
Hourly earning of Denise is $30.
Let the number of hours Denise works be 'h'.
Now, total earning of Denise can be calculated using the unitary method and is given as:
Now, total money earned by Denise must be at least $2000 in order to purchase a computer. Therefore, the inequality is given as:
Therefore, Denise has to work at least 67 hours in order to buy a computer that costs $2000.
√- 81 doesn't result in a rational number because you can't get a negative from squaring any number. Instead you get a number with an imaginary number.
13 - √- 81 = 13 - 9i
Answer is slope of 5
Step by step
You can graph the slope as seen on the attached picture. You go up 30, you go right +6. Slope is y/x, so 30/6, equals 5
You can also use the slope formula
(y2-y1) over (x2-x1)
Using points on the graph
(6,0) and (0,-30)
(-30-0 ) over (0-6)
-30 over -6
-30/-6
= 5
It will take him 120 mins as he runs 8 minute miles