Answer:
[8 -6 2 -4].
Step-by-step explanation:
[4 -4 0 0]+[4 -2 2 -4]
= [4+4 -4+-2 0+2 0+-4]
= [8 -6 2 -4]
To find the cost of each folder first:
30/82.50 = 1/x
cross multiply:
30x = 82.50
find x.
x = 2.75
a journal is 10 times as much as a folder.
multiply.
2.75*10=27.50
I'm pretty sure y is 47 and x is 46... hope that helps!
0.505 means 505 * 0.001, or 505 * 1/1000. This is equivalent to 505/1000, or 101/200.
Answer:
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Step-by-step explanation:
