Answer:
Kirk wrapped 7 presents with those 23.8 cm of tape.
Step-by-step explanation:
Figure out the unit rate:
10.2 cm tape
-------------------
3 presents
or
3 presents
-----------------------
10.2 cm tape
Multiplying this by 23.8 cm results in the number of presents Kirk wrapped with that much tape:
(3 presents)(23.8 cm tape
--------------------------------------- = 7 presents
10.2 cm tape
Kirk wrapped 7 presents with those 23.8 cm of tape.
4 5/6 is the same as 29/6.
2 2/3 is the same as 8/3.
29*8 is 208.
6*3 is 18.
208/18 simplified is 104/9.
D x= -9
Y=9
Because 4(-9)+45=9
I just put in each one and d got it right.
Iddentity add
c+0=c
identiy mulitply
22b x 1 = 22b
multiplicative 0
40286 x 0=0
commuative
x+z=z+x
commutative multiply
k x 6=6 x k
associative add
(1+3)+9=1+(3+9)
assoative multiply
(w x h) x l=w x (h x l)
Answer:
Part 1 - B
Part 2 - He did not multiply 2 and -4n. Instead he just subtracted them (3n -4n) that gave him -1n.
