Answer:
-1 and -5
Step-by-step explanation:
You must account for negative u values (which the abs nullifies).
So
and
is what we have to solve for.
As for usual equations, isolate the u variable.
5u + 15 = 10
5u + 15 (-15) = 10 (-15)
5u = -5
![\frac{5u}{5}=\frac{-5}{1}](https://tex.z-dn.net/?f=%5Cfrac%7B5u%7D%7B5%7D%3D%5Cfrac%7B-5%7D%7B1%7D)
u = -1
Now you can do the same operation for the other equation and you should get u = -5.
Let's make sure we did it right by replacing u with one of our solutions (-1 or -5).
![|5(-1)+15| = 10\\10 = 10](https://tex.z-dn.net/?f=%7C5%28-1%29%2B15%7C%20%3D%2010%5C%5C10%20%3D%2010)
That's true. What about the other one?
![|5(-5)+15|=10\\10=10](https://tex.z-dn.net/?f=%7C5%28-5%29%2B15%7C%3D10%5C%5C10%3D10)
Halo there!
The ratio of apples to all fruit is B. 7:15. Here's how to solve:
First, since they're asking for how many apples there are to the total pieces of fruit, add up 28 with 20 and 12:
28 + 20 = 48
48 + 12 = 60
Now, since they're asking specifically <em />for apples <em />to total pieces of fruit, we arrange the ratio in that specific order. Since we know there are 28 apples and 60 fruit in total, the ratio should look like this:
28:60
Finally, we need to simplify the ratio. 4 can fit into both 28 and 60, so let's divide both numbers down by 4 first:
28 / 4 = 7
60 / 4 = 15
7 and 15 don't have any common factors, so these numbers are already in their simplest form. The new ratio should look like this:
7:15
So the correct answer is B! I hope this helped you! :)
Answer:
= 4
Step-by-step explanation:
sqrt 15 = 3.872
to approximate to the nearest whole number (integer), you take the first decimal number which is 8, since 8 is greater than 5, you will add one(1) to the whole number which is 3 to make it 4.