Answer:
1. $6.20
2. Samantha has $79, she decides to go to the mall and buys 6 dresses that are $7 each. She thinks that she might not have enough money so she returns 2 dresses. She then finds out that she has more than enough so she buys a candy bar for $5. How much money does she have left?
Sam has $79, she buys 6 dresses that cost $7 each. She returns 2 dresses and then buys a candy bar for $5. How much money does she have left?
Step-by-step explanation:
1. you can write an equation to represent the word problem
20-(2.10+0.9x)
20-(2.10+0.9(13)
20-(2.10+11.7)
20-(13.8)
6.2
Answer:
Because they aren't equivalent. Prolog allows the definition of symbols as inline operators using the op/3 predicate, which allows one to convert arbitrary compounds to formulae and back again.
Step-by-step explanation:
Since 2+2 is a compound with arity 2 and 4 is just an atom unification is impossible and the query fails. To actually do arithmetic equivalence you must use =:=/2 (2 + 2 =:= 4). To solve arithmetic problems you must use is/2 or use an interpreter with arithmetic constraint extensions.Yes, the moment you begin to tie math to real world items, it can turn false very quickly. For example:
(2 red balls + 2 blue balls = 4 orange balls) = false
(2 women + 2 women = 4 men) = false
(2 cats + 2 mice = 4 dogs) = false
(2 oxygen as a single molecule (o₂) + 2 oxygen as a single molecule (o₂) = 4 oxygen as a single molecule (0₄)) = false
That is to say, in the real world there is often non-numerical 'metadata' in additional to the numbers being added, such that a perfect equality (beyond mere quantity) is false. This 'metadata' would include everything from size, to composition, to structure, to color, to temperature, to species, to intelligence, to flavor, to temperament, to physical laws of union and relation, and many other properties.
1000 squares * 6 square feet each = 6000 square feet of sod
Answer:
Step-by-step explanation:
I believe it's 12 parts? Because 1 third would be 4/12 and 1 fourth would be 3/12.