Weiming, Joyce and Siti divide cookies to sell in a ratio of 5: 12: 9. After Weiming sold 28 cookies, the ratio becomes 1: 8: 6.
How many cookies did they have in the first place?
1 answer:
Answer:
216 cookies
Step-by-step explanation:
From the question,
Let the total cookies in the first place be x cookies.
Their ratio = 5:12:9
Total = 5+12+9 = 26.
Weiming share = (5/26)x = 5x/26
If weiming sold 28 cookies
⇒ (5x/26)-28
⇒ (5x-728)/28
Hence Weiming new share = (5x-728)/28 cookies
The new ratio is 1:8:6
The total cookies becomes = x-28
Therefore,
(1/15)(x-28) = (5x-728)/28
(x-28)/15 = (5x-728)/28
Crossmultiply
28(x-28) = 15(5x-728)
28x-784 = 75x-10920
Collect like terms
28x-75x = -10920+784
-47x = -10136
x = -10136/-47
x = 215.7
x ≈ 216 cookies
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Answer:
10
Step-by-step explanation:
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Answer:
Jace gets $18.00 while Chris keeps $27.00
Step-by-step explanation:
Jace
2/5 of $45.00
2/5 × 45
= $18.00
Jace gets $18.00
Chris:
$45.00 - $18.00 = $27.00
Answer:
Yes
Step-by-step explanation:
They are proportional by a scale of 1.5
so,
it equals 12.49 or 12.5 depending on rounding
I hope this helps!
