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noname [10]
3 years ago
10

a book store sells two notebooks plus a $30 backpack for the same amount as the price as the price for 12 notebooks.how much doe

s one notebook cost?
Mathematics
1 answer:
JulsSmile [24]3 years ago
8 0

Answer:

$3 per notebook.

Step-by-step explanation:

i would start by taking the two notebooks away from the imaginary cart.

then a $30 backpack=10 notebooks.

if so, then, each notebook=$3 because 3x10=30.

if you re-add the two other notebooks then it would be twelve $3 notebooks=$36 ($30 backpack and two $3 notebooks) and 12x3=36 and 36=36

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Answer:

It will take 1.6 hours for the two trains to be 336 miles apart.

Step by step explanation:

Given that:

Speed of eastbound train = 95 miles per hour

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Combined speed = 95+115 = 210 miles

Distance = 336 miles

Speed = \frac{Distance}{Time}\\\\210 = \frac{336}{Time}\\\\Time = \frac{336}{210}\\\\Time = 1.6\ hours

Hence,

It will take 1.6 hours for the two trains to be 336 miles apart.

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A consistent and independent system of equations describes the given system of equations.

The consistent and independent system of equations are given below.

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Step-by-step explanation:

Given:

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