43 multiplying decimals with models
OK so when I see something like .3 \* .3 I'm really tempted to put .9 as the answer, but then I realized that it's just like multiplying .3 by thirty percent, so I get how the product gets smaller than .3 (.3 \* .3 = .09), but is there an easier way to think about this so I can do it quickly in my head and not put too many/ too few zeroes. I love Python, but it seems like a very annoying inconvenience: `Decimal (0.5) * 1.0` should work without me casting the numbers. So since Python assumes a decimal number typed into an equation is a float, should I make Float my main universal type for all my variables to avoid additional castings?
Why does .7*.7=.49? I can’t comprehend. The total of the two equals a lesser amount than the original. An explanation would be so greatly appreciated.
Multiplying decimals with models
Rhonda and Lucille are planning to rent a truck for a week to drive their belongings from Los Angeles to New York. Their truck average 18.5 miles to the gallon, and they find gas costs on average $2.75 per gallon across the country. Rhonda and Lucille need to decide if they want to pay for the truck at a daily rate of $75 per day or for a rate of $150 plus an additional $.07 per mile. Rhonda and Lucille also plan to spend $25 per day for food. Based on your calculations, how much should Rhonda... ​ [Could someone let me know where i went wrong on this question? Thank you:\)](https://preview.redd.it/8ua9eske0y081.jpg?width=4032&format=pjpg&auto=webp&s=b6565edc02ea3fca5657cb5bf4093af468a10c94) Doing a project for school; we are required to use the money data type and I am multiplying 2 fields (Price and Quantity) using a scalar function. After running the function the result should be something like 1.99 x 3 = 5.97, but what ends up coming out is 59.7. I am not sure how to fix this problem; the videos showing how to do this function has the teacher with the proper data output but I have checked both tables and there shouldn't be any math issues.
Multiplying decimals with models. From what I can tell there isn't a way to add any more than the tenths place currently, just trying to get my conversion from other games closer to this one. Is there any difference in programming? I don't know enough about programming to know how it affects processing speed or if it even matters in the modern age, but i know enough about programming to know there are some weird nuances i should maybe ask about. Adding and multiplying whole numbers is straightforward i assume/hope. I am working on an equation now where at points i reduce a number. For example, diving a total by 4. Will i have a difference writing this "divide by 4", or "multiplied... Modeling with Hundredths Blocks: 1. Take your first decimal number. (your first factor) and shade in that many squares of your hundredths.3 pages Hey r/learnmath. I was thinking about multiplying decimals. I was thinking about \*why\* they always match up with if they didn't have decimals. Example: 1.5\*1.5=2.25, and 15\*15 is 225. Notice how every time, they're exactly the same, just with the decimal moved. And furthrmore, how dividing fractions works. I wondered about this simple property, but it's a little hard to formalize in my mind. Thank you.
Im using java and I was trying to do an equation that went as follow. d1 = (1/12 \* 0.5). After displaying the value it says its 0.00 but its supposed to be 0.25. Im a bit confused on how im supposed to get 1/12 mulitplied to 0.5. Thanks. Doing a project for school; we are required to use the money data type and I am multiplying 2 fields (Price and Quantity) using a scalar function. After running the function the result should be something like 1.99 x 3 = 5.97, but what ends up coming out is 59.7. I am not sure how to fix this problem; the videos showing how to do this function has the teacher with the proper data output but I have checked both tables and there shouldn't be any math issues. ​ [Could someone let me know where i went wrong on this question? Thank you:\)](https://preview.redd.it/8ua9eske0y081.jpg?width=4032&format=pjpg&auto=webp&s=b6565edc02ea3fca5657cb5bf4093af468a10c94) Rhonda and Lucille are planning to rent a truck for a week to drive their belongings from Los Angeles to New York. Their truck average 18.5 miles to the gallon, and they find gas costs on average $2.75 per gallon across the country. Rhonda and Lucille need to decide if they want to pay for the truck at a daily rate of $75 per day or for a rate of $150 plus an additional $.07 per mile. Rhonda and Lucille also plan to spend $25 per day for food. Based on your calculations, how much should Rhonda...
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