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3 years ago

Can someone please help me. It’s hard and I don’t understand.

Mathematics

1 answer:

raketka [301]3 years ago

4 0

9513 1404 393

Answer:

changes by 120 for each copy
is 1800 if none are sold

Step-by-step explanation:

Let's look at the second question first.

x is the number of copies Chau sells. If he doesn't sell any copies, then x = 0. To find Chau's pay, we use x=0 in the equation, and solve for y.

120×0 +1800 = y

0 +1800 = y

1800 = y

Chau's pay when he sells no copies is $1800.

If Chau sells 1 copy, then his pay is ...

120×1 +1800 = y = 1920 . . . . . . . use the equation with x = 1

The increase in Chau's pay is 1920 -1800 = 120.

Chau's pay changes by $120 for each copy he sells.

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