10.)Zyah, Kara and Shaina have ₱457.75 together. Kara has ₱15.25 more than Zyah, and Shaina has twice as much money as Kara. How much money does each of them have?
1. what is asked?
2. what are the given facts?
3. operation to be used
4. mathematical sentence
5. solve
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Answers & Comments
Answer:
kara= x + 15.25
zyah= x
shaina= 2 ( x + 15.25 )
zyha + kara + shaina = 457. 75
x + x +15.25 + 2 ( x + 15.25 ) = 457. 75
2x + 15.25 + 2x + 30. 50 = 457. 75
4x + 45.75 = 457. 75
4x = 457. 75 - 45. 75
4x = 412
412 / 4
x= 103
zyah has 103
kara = x + 15.25
= 103+ 15. 25
kara has 118. 25
shaina= 2 ( x + 15. 25)
= 2 (103+ 15. 25)
= 2 ( 118.25)
SHAINA= 236.50
check:
kara+ zyah + shaina= 457.75
118.25 + 103 + 236.50 = 457.75