Step-by-step explanation:
Substitute variables with given values
Minus sign becomes plus sign if a negative is multiplied by a negative or a negative is put next to a negative number.
4x-7y=4(-5.2)-7(-6.8)
-20.8+47.6=26.8
Answer:
116
Step-by-step explanation:
3 to the power of 4 is 81. 7x5 =35+81=116
not an answer but I’m working on the same worksheet and if u wanna work on it together than u should add my discord: kuispe#1715
Answer:
5 and 5/12 hours because you just add them up.
Step-by-step explanation:
they all have a common denominator so you don't need to worry about finding one. 1 + 2 + 1. Then you do 11/12 + 1/12 + 5/12 and add up the two bolded things that I did. Your Welcome!!