SOLUTION: I do not know how to start this problem, let alone how to solve it... Please help me.. the problem is 5(7+8)-3/4 x 4(9)

Question 966506: I do not know how to start this problem, let alone how to solve it... Please help me.. the problem is 5(7+8)-3/4 x 4(9)
Answer by EdenWolf(517) (Show Source): You can put this solution on YOUR website!
Hello,
Let's see if I can help.
So, you might know the PEMDAS, or order of operations. If not, then it goes like this:
Parentheses
Exponents
Multiplication or Division
Addition or Subtraction

So first we have to solve everything in the parentheses. 9 we already know is 9, so we leave that. 7+8 is 15, so we have 15 in the parentheses.
5(15)-3/4*4(9)
First, multiply 5 and 15. When you see a number right next to a number in parentheses, that means they are being multiplied. (For example, .
75-3/4*4(9)
Now divide 3 and 4. We don't subtract because that's not what comes next in the order of operations.
3/4=0.75
So now the expression looks like this:
75-0.75*4(9)
Multiply 0.75 and 4.
75-3(9)
Multiply 3 and 9.
75-27
Finally, subtract 27 from 75.

The answer is 48.

RELATED QUESTIONS
help!!!!! 4+5e^-5=9 i do not know where to start to solve this... (answered by Tatiana_Stebko,lwsshak3)

76. (x^3-1)/(x^2+1) divided by (9x^2+9x+9)/(x^2-x) I do not know where to start on... (answered by funmath)

Solve the equation for x: x^2+4x+4=7 I am not sure where to start with this one. It is (answered by checkley71)

it says here to rewrite each equation in standard form. 1. y=x+9 2. y=3x+7 3.y=4x+8... (answered by stanbon,ewatrrr)

I am struggling with this problem and do not know how to solve it. Please help if you... (answered by Edwin McCravy)

Could someone please check these, I am not sure if I understood them correctly. I should (answered by Alan3354)

The problem is this: 3x - 5y = -9 5x - 6y = -8 I believe that I did the first part (answered by solver91311)

Please help me solve this equation 3/x + 15/x-20= 3x-9/x-20. The / represent fractions.... (answered by ankor@dixie-net.com)

I am not for sure how to do this problem: 7<4+x<8. Could someone help me understand this... (answered by Ultimatemagic)