1/8= 12 true or false
2 answers:
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we are given
0.8m of silk ribbon costs $5.60
now, we can find cost of 1m of silk ribbon
so, we can divide both sides by 0.8
1 m of silk ribbon cost =
1 m of silk ribbon cost =
Let's assume amount of silk ribbon as x
Let's assume cost of silk ribbon as y
so, we will also get
so, we can see that
These quantities vary directly
now, we can compare it with
where k is constant of variation
so,
The constant of variation:
Cost at 3.25m:
we can plug x=3.25 and find y
So, the cost of 3.25m silk ribbon is $22.75........Answer