Answer:
3x^2 + 10x - 8 = 0.
Step-by-step explanation:
In factor form it would be:
(x + 4)(3x - 2) = 0 (because x + 4 = 0 gives x = -4 and 3x - 2 = 0 gives x = 2/3);
Now change to standard form:
= 3x^2 - 2x + 12x - 8 =0
= 3x^2 + 10x - 8 = 0.
This is what I did
45-5=40
40÷4=10
so there are 10 white marbles
but am not sure is just a question that am not sure
Answer:
15.52-125 easy
Step-by-step explanation:
Hello! I would love to help!
Let's start by decreasing 32 pages to 28. How many pages does it take to get from 28 to 32? Let's subtract to find out!
32-28=4
Okay, now we know 28 pages is 4 less than 32.
Now, what percentage did it decrease by? Let's find out by dividing!
4/32=0.125
Let's make that decimal into a percentage by multiplying it by 100.
0.125*100=12.5
So, we now know the answer is...
decreased by 12.5%
Hope this helped! Comment if you have questions!
Answer:
a = 4/27 - b/54
Step-by-step explanation:
27a+1/2b=4
Subtract 1/2 b from each side
27a+1/2b - 1/2 b=4-1/2 b
27a = 4 - 1/2 b
Divide each side by 27
27a/27 = 4/27 - 1/2 b/27
a = 4/27 - b/54
