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dimulka [17.4K]
3 years ago
15

HELPPPPPP pls give explaiantikn or work pls pls pls pls brainliest

Mathematics
1 answer:
Andru [333]3 years ago
3 0

Answer:

Elizabeth had 30 stamps originally.

Step-by-step explanation:

Let,

x be the number of stamps Elizabeth have.

Number of stamps given to John = 1/6 of x = \frac{1}{6}x

Remaining stamps = x-\frac{1}{6}x = \frac{6x-1x}{6} = \frac{5}{6}x

Stamps given to Peter = 1/5 of remainder = \frac{1}{5}*\frac{5}{6}x = \frac{1}{6}x

Number of stamps left = 20

Now,

\frac{1}{6}x + \frac{1}{6}x + 20 = x\\\\\frac{1x+1x+120}{6} = x\\\\\frac{2x+120}{6} = x\\\\2x + 120 = 6x \\\\120 = 6x - 2x \\\\120 = 4x \\4x = 120

Dividing both sides by 4

\frac{4x}{4}=\frac{120}{4}\\x=30

Hence,

Elizabeth had 30 stamps originally.

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3 years ago
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What is the answer for 2n^2-8n=-9 ?
lbvjy [14]

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