If a textbook weighs 2 1/2 pounds and the notebook weighs 4 ounces. You bought 5 textbooks and and 5 notebooks what is the total weight in pounds?

2.5 pds 4 oz 12 1/2
*5 textbooks *5 + 20 oz
___ ____ __________
12 1/2 20 oz

I'm confused after that. Pleeeaase help!

one book weighs 2.5 lbs

so 5 books weigh 5(2.5) or 12.5 lbs

one notebook weighs 4 ounces
5 notebooks weigh 20 ounces
= 1 lbs and 4 ounces , (if I recall the non-metric stuff)

total = 12.5 lbs + 1 lb + 4 ounces, you were correct here
= 13.5 lbs + .25 lbs
= 13.75 lbs or 13 lbs and 12 ounces

(shows why the US just has to go metric )

Metric spoils all the fun.

Remember:
1 slug = 1 pound/g = (1/32.174049)pounds on the surface of earth only.

Why, Damon, I'm surprised! You never seem to miss a chance at poking fun at English units.

And I (sort of) like all the strange units, just as I miss the old English coinage.

That's weird, if the slug is defined in terms of pounds, and not the other way around. Guess it's all relative...

LOL, English units bother me almost as much as the confusion between bearing and heading in mathematics texts :)

To solve this problem, we need to convert ounces to pounds so that we can add the weights together.

Since there are 16 ounces in a pound, we can divide the 20 ounces by 16 to get the weight in pounds.

20 ounces ÷ 16 = 1.25 pounds

Now we have the weight of the notebooks in pounds.

Next, let's calculate the weight of the textbooks.

We have 5 textbooks, and each textbook weighs 2 1/2 pounds.

To find the total weight of the textbooks, we can multiply the weight of one textbook by the number of textbooks.

2 1/2 pounds × 5 textbooks = 12 1/2 pounds

Now we have the weight of the textbooks in pounds.

To get the total weight, we can add the weight of the textbooks and the weight of the notebooks.

12 1/2 pounds + 1.25 pounds = 13.75 pounds

Therefore, the total weight of 5 textbooks and 5 notebooks is 13.75 pounds.