Farm joe ordered 3 bags of soil last month. each bag weighed 4 2/5 kilograms. he used the first bag in a week. at the end of this month, there were 2 3/4 kilgrams of soil left in the second bag and 7/8 kilogram of soil left in the third bag. how much soil was used in this month?

9 23/40 kg

Step-by-step explanation:

The three bags ordered weighed a total of

... 3 × 4 2/5 = 12 6/5 = 13 1/5 . . . kg

The amount remaining at the end of the month was

... 2 3/4 + 7/8 = 2 6/8 + 7/8 = 2 13/8 = 3 5/8 . . . kg

The difference is the amount used.

... 13 1/5 - 3 5/8 = (13 -3) + (1/5 -5/8) = 10 + (1*8 -5*5)/(5*8)

... = 10 - 17/40

... = 9 23/40 . . . kg

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The sum or difference of fractions can always be computed from ...

... a/b ± c/d = (ad ± bc)/(bd)

In this case, bd = 5·8 = 40 is the least common denominator.

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A calculator will often handle problems like this very nicely.

answer:   y=2x-3

step-by-step explanation:

step-by-step explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without