how do you evaluate these numbers?
/-48/-/-20/
-/-51/
I have looked every where and I need help please.
Basically, the number inside the / / is always positive. Only if it has a negative sign on the OUTSIDE, is it negative. The / / means "absolute value" which is simply how far away from 0 on a number line the number is. So, /-48/ is 48 spaces from 0, so it's value is 48.
Hope this makes sense!
does it look like this?
│-48│ - │-20│
if so, you are dealing with "absolute value".
it simply means take the positive value of the number you are dealing with, so ...
│-48│ - │-20│
= 48 - 20
= 28
and -│-51│
= - 51
By take away the numbers.
To evaluate the given numbers, you need to follow the rules of mathematical operations, which involve performing calculations in a specific order called the order of operations (PEMDAS/BODMAS).
Let's break down each part of the expression:
1. /-48/-/-20/:
- Start with the innermost operation, which is the double negative sign (two consecutive "-") before 48. A double negative becomes positive, so -48 becomes +48.
- Next, evaluate the absolute value of 48, denoted by |48|. The absolute value of a number is always positive, so |48| equals 48.
- Finally, evaluate the absolute value of -20, |(-20)|, which is 20.
- Therefore, /-48/-/-20/ simplifies to 48/20, which can be further simplified to 2.4.
2. -/-51/:
- Similar to the previous expression, we first evaluate the absolute value of -51, |(-51)|, which is 51.
- Finally, the negative sign in front of 51 means it is negated, so -(|(-51)|) becomes -51.
- Therefore, -/-51/ simplifies to -51.
In summary, the given expression /-48/-/-20/ evaluates to 2.4, and -/-51/ evaluates to -51.