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Lyrx [107]
3 years ago
14

Please help! It's math.

Mathematics
1 answer:
Monica [59]3 years ago
3 0
How do you send pictures for questions? Then, maybe I could help.
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How many kilograms of tin will be required to make 250 kg of an alloy, if the alloy must contain 81% copper, 14% tin and 5% lead
uysha [10]

Answer:

35

Step-by-step explanation:

all are obeying a constant ratio

  • copper 81
  • tin 14⇒?
  • lead 5
  • total 100 ⇒250
  • ?=250*14/100=35
5 0
3 years ago
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Quadrilateral ABCD has vertices at: A(0,7),B(10,9),C(12,-1),D(2,-3)
Svetach [21]

Answer: the answer is c

Step-by-step explanation:

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3 years ago
If a member variable is declared , all objects of that class share that variable. A(n) function is not a member of a class, but
Tcecarenko [31]

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3 years ago
Five pencils and 4 erasers cost $7.65. Four pencils and 5 erasers cost $7.20.What is the cost of 2 erasers?
Arturiano [62]

I think this is right.. I tried my best. If u get it sorry... I’m very sorry



1. Divide 7.20 by 4 since the 4 are the pencils

2.divide 7.20 by 5 ( 5 represents the erasers )

3. Then finally multiply 1.44 from 7.20/5 and
2 and u get 2.88
8 0
3 years ago
After retirement from the service a man received some amount from his provident fund. He gave two-fifth of the amount to his son
Fed [463]

Answer:

F

Step-by-step explanation:

Ghstgnmootfwr

3 0
2 years ago
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