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Len [333]
3 years ago
8

Pat and Julie share some money in the ratio 2 : 5

Mathematics
1 answer:
Hitman42 [59]3 years ago
6 0

Answer:

22.50

Step-by-step explanation:

the ratio is 2:5 so if julie got 45 then pat would get half of what julie got

45 divided by 2

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A metal worker has several 1-kilogram bars of a metal alloy that contain 23% copper and several 1-kilogram bars that contain 79%
astraxan [27]

Answer:

30 each of 23% bars and 18 each of 79% bars

Step-by-step explanation:

If x is the number of 1 kg 23% copper bars, and y is the number of 1 kg 79% copper bars, then:

x + y = 48

0.23x + 0.79y = 0.44(48)

Substituting and solving:

0.23x + 0.79(48-x) = 0.44(48)

0.23x + 37.92 - 0.79x = 21.12

16.8 = 0.56x

x = 30

y = 48 - x

y = 18

You need 30 each of 23% bars and 18 each of 79% bars.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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EleoNora [17]

Answer:

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8 0
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Allisa [31]

Answer:

8.25 ft & 6.75 ft

Step-by-step explanation:

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3 years ago
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