when adding/subtracting with signs....if the signs are the same, add them and use the same sign. If the signs are different, subtract them and use the sign of the bigger number.
i think D or A mostly D
think about it....the signs are the same....so they are to be added and you would use the same sign....so it would be - 9.32....understand ?
It can get a little confusing because adding/subtracting with signs has a whole different set of rules then multiplying/dividing with signs
wait i was wrong it was A
it is A....signs are the same...so you add and keep the same sign
oh ok i have 2 more plz help
what ya got ?
Evaluate d – 7.5 when d = –3.82. A. –11.32 B. –3.68 C. 3.68 D. 11.32
ok....after subbing your problem becomes : -3.82 - 7.5.....look familiar....signs are the same....so add and keep the same sign
-11.32 i was thinking that
you got it :)
got another one ?
Evaluate m – n when m = –1.5 and n = –7.7. A. –9.2 B. –6.2 C. 6.2 D. 9.2
ok...after subbing your problem becomes : -1.5 - (-7.7).....little different here...we have to distribute the negative through the parenthesis changing the problem to : -1.5 + 7.7.....so the signs are different. So you subtract (7.7 - 1.5) and use the sign of the bigger number.
C the bigger number is positive
i might have done something wrong
because the -7.7 became + 7.7 making the sign positive
yay i got a 100 and now i under stand this =)
good to hear....but like I said, these rules are different from the rules that apply to multiplying/dividing with signs. Try not to get them mixed up
you are the best :)
see ya thanks
lol....I don't know about that...but thank you :)