At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
what are you having trouble with?
i dont really understand how to find the answer
I think this wants to show you how a negative number moves left and positive to the right...so.. plus a negative number is the same as just subtraction 3 - 5
it is saying +(move right) by (-5) which itself moves left
yea i know 3+(-5)= 3-5, but i still cant get the answer
so what your saying is go right 3 times and then lest 5
because i thought that was how u do it but i was confused
No its a negative
no just remember, a + (-b) = a - b plus a negative is subtraction
so is the answer -2
if you add a negative number to a value on the numberline, you move left, same as if you just had subtracted it
the other one is minus a negative number, same as just addition a - (-b) = a + b
i really need to get a good grade on this test. i did the number line and went from 0 to 3 then i went left 5 times and i got -2
is that the right answer?
oh number line... forgot
3 + (−5) start at 3, move left 5 to -2
so then i got the correct answer?
i dont get that
i started at 0 and went right till i got to the number 3. then i went left 5 times but started at 3 instead of 0 and i got -2. Is this right or wrong?
the upper one is just showing the distance between 3 and -2, not sure what you have to include on your graph
just explain how to get the answer... or how u got the answer using the number line
the explanation that i said earlier was it right or wrong
oh they want you to start at zero? then to show 3 - 5 = -2 ... start at zero, move +3, then move -5, end on -2
thank you. i really needed to make sure i had the right answer
can you help me with something else?
sure, i have a couple min
Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning. Write feedback to Andrew explaining the mistake he made and how to correct his work. Step Work Reasoning −4.5 + 4.2 + 5.6 − 7.3 Original problem 1 −4.5 + 4.2 + 5.6 + (−7.3) Additive inverse 2 −4.5 + (−7.3) + 4.2 + 5.6 Commutative property 3 (−4.5 + (−7.3)) + (4.2 + 5.6) Associative property 4 −11.8 + 9.8 Simplify 5 −21.6 Simplify
in the original problem the 7.3 is positive, why in 1. he wrote it was negative
The 7.3 is negative in the original
the only thing i see is in the simplifying step
-11.8 + 9.8 = -2 not what he wrote -21.6
but were does he make his first mistake?
In the original problem 7.3 is positive, when Allen wrote it as commutative and additive inversion, he wrote it as a negative. That was one mistake. Another mistake was that since 3.7 is not negative, he does not need an extra set of parentheses for 7.3. instead of (−4.5 + (−7.3)) + (4.2 + 5.6) it should be (-4.5 + 7.3) + (4.2 + 5.6). Since he messed up with all that, the way he simplified his answer is wrong too.
is this correct?
why are you saying 7.3 is positive? −4.5 + 4.2 + 5.6 − 7.3 was given
isnt that infront of 7.3 a subtraction
all the numbers look good to me except for the last simplifying step where he subtracted instead of added.. if the original prob is copied wrong, then i guess that too, or maybe the additive inverse thing as well...
got to run.. sorrry . be back later
ok thank you for the help