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3 years ago

The sum of two numbers is 18. Twice the first number (x) minus the second number (y) is 6. Find the two numbers

Mathematics

1 answer:

ki77a [65]3 years ago

8 0

Answer:

8 and 10

Step-by-step explanation:

Set the first number as x, the second as y

x+y=18

2x-y=6

This is an binary system of first order equations

3x=24

x=8

y=10

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Answer:

See below

Step-by-step explanation:

The quadratic equation in factored form:

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Substitute them to get:

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Converting this into standard form:

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3 years ago

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tresset_1 [31]

Answer:

Step-by-step explanation:

Using the law of cosines in ΔABC

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4 years ago

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Serhud [2]

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3 years ago

Read 2 more answers