Steps to solve:
5a - 2(-3a + b)
~Distribute
5a + (-2 * -3a) + (-2 * b)
~Simplify
5a + 6a - 2b
~Simplify
11a - 2b
Best of Luck!
I did the calculations two ways. The last data item was 185.00!
I wasn't sure if this was correct or a typo. With 185.00: mean 33.31. STD dev 53.68. With 185.00 changed to 18.50: mean 14.81 std dev 2.75
<span><span>Answer by </span>nerdybill(7384) (Show Source):You can put this solution on YOUR website!
<span>The sum of 5 times a number and -2, added to nine times a number.
.
Looking at the first part:
The sum of '5 times a number' and '-2'
we get
5x + (-2)
or
5x - 2
.
The above is then "added to nine times a number" to get:
5x - 2 + 9x
Combining x's we get:
14x - 2
</span>
<span>Answer by </span>mizjoice(22) (Show Source):You can put this solution on YOUR website!
<span>Take it piece by piece:
5 times a number, rewrite as 5x
plus -2, nothing to rewrite there, that's already simplified,
added to nine times a number, rewrite as 9x.
Now, rewrite as an equation:
5x-2+9x = (See, it already looks better!)
Now combine like terms:
5x + 9x -2= 14x - 2</span></span>
1,615 - 53.60 = 1,516.4
1,516.4 rounded is 1,516.
1,516 is about 96% of 1,615.
100 - 96 = 4
4%
no you are actually doing really good keep it up
