8-21
9- -16 i think lemme do the next ones
To answer this question, an assumption must be made, that Eva spends 8 hours a day working. If this is the case, then Eva will complete jobs w, x, and v on day one, for a total of six hours. Since the next job (y) requires 4 hours, she will spend two hours working that day, leaving 2 more hours to go on that job. The next day she will spend 2 hours finishing job y, completing it, and finish the longest job z (hours) that day. This means she had 4 jobs on day one, and 2 jobs on day 2 for and average of 3 jobs per day.
This answer assumes an 8 hour work day, and that Eva can start a job she cannot finish that day.
Answer:
There are 392 storybooks.
There are 49 magazines.
<h3>There are 343 more storybooks than magazines are there in the library.</h3>
Step-by-step explanation:
s = number of storybooks
m = number of magazines
The library has 441 storybooks and magazines altogether.
s + m = 441
There are 8 times as many storybooks as magazines.
s = 8m
How many more storybooks than magazines are there in the library
?
Substitute s = 8m into the original equation to find m.
s + m = 441
8m + m = 441
9m = 441
m = 441/9
m = 49
Substitute m = 49 into the original equation to find s.
s + m = 441
s + 49 = 441
s = 441 - 49
s = 392
s - m = 392 - 49 = 343
Answer:
is there an attachment?
Step-by-step explanation:
1. Two consecutive integers means that the values are whole numbers and they are located right after the other (eg. 2, 3).
Now, let us call the smaller value x. The consecutive value will be one greater than x, thus the larger value may be written as x + 1.
2. We know that the product of the two values is 420. Given that the smaller value is x and the larger value is x + 1, we can write this as:
x(x + 1) = 420
3. Now we can expand to get:
x^(2) + x = 420
4. Now subtract 420 from both sides to get:
x^(2) + x - 420 = 0
Therefor, the constant of the quadratic expression is -420.