3 years ago

When Milo buys an order of copper, he pays $45 for the first pound and $42 for each additional

Mathematics

1 answer:

Alenkinab [10]3 years ago

6 0

Answer:

45 +42p

Step-by-step explanation:

Each additional pound is 42 so it has p and 45 is only for the first pound

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9. 3x + 9y = 18<br> y = x + 2<br> Substitution method

777dan777 [17]

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Step-by-step explanation:

3x + 9y = 18 ---------eqn 1

y = x + 2---------eqn 2

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Hint: to confirm the values

x = 0

y = 2

Let's take eqn 1 ,

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3(0) + 9(2)

= 0 + 18

= 18

Correct

Let's take eqn 2

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Correct too

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