15 - 8
8 + 2 is 10, so there are 5 leftover. 2 + 5 is 7, so 8 + 7 is 15.
Answer:
Step-by-step explanation:
Note that √2x = √2*√x, and so we have √2*√x + 13 = √x + 31.
First subtract 13 from both sides, obtaining: √2*√x = √x + 18.
Next, group the √x terms together: √2*√x - √x = 18.
Now solve this for √x. We get:
√x(√2 - 1) = 18, or
18
√x = --------------
(√2 - 1)
To find x, square both sides:
18^2
x = ---------------
(√2 - 1)^2
Answer:
-5x-48y
---------
10
Step-by-step explanation:
There you go
Here, we want to write the decimal as a percent
We first re-write as a fraction then multiply by 100%
We have this as;
Answer:
false
Step-by-step explanation:
two negatives always equal a positive