A student weighs a sample of the shale and

1 answer:

4 0

interesting choice of pfp

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7nadin3 [17]

Answer:

$1.30

Step-by-step explanation:

Let x = the cost of the pencil

Let x + .80 = the cost of the pen

Let 4(x + .80) = the cost of the binder

x + x + .80 + 4(x + .80) = 11.80

2x + .80 + 4x + 3.20 = 11.80

6x + 4.00 = 11.80

6x = 7.80

x = $1.30

x + .80 = $2.10

4(x + .80) = $8.40

7 0

2 years ago

uysha [10]

The answer will be 1.2

3 0

3 years ago

sergejj [24]

Answer:

y< or equal to x^2-3.

I hope it helps.

4 0

2 years ago

NISA [10]

This is the answer to the problem. Hope it helps

8 0

3 years ago

Zanzabum

looks very OP mate very good

4 0

3 years ago