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3 years ago

If five books cost 5.25 how much would 3 cost.

Mathematics

1 answer:

nordsb [41]3 years ago

4 0

Step 1: Divide $5.25 by 5
=1.05

Step 2: Multiply 1.05 by 3
= 3.15

Step 3: You're done!

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3 years ago

Seven tenths of a number plus fourteen is less than forty-nine

zloy xaker [14]

I'm going to assume you need this inequality solved.

First, write it as numbers, not words.

7/10n + 14 < 49

where "n" is the unknown number.

Second, if I were you, I'd change that fraction into a decimal, as it'll make life easier later on.

7/10 = 0.7

Now, solve it like you would any other equation.

0.7n + 14 < 49

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0.7n ÷ 0.7 < 35 ÷ 0.7

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The answer is n < 50

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3 years ago

What is the solution to x=1/2y-3 and y=2x+6

Tom [10]

Answer:

infinite solutions

Step-by-step explanation:

Multiply the first equation by 2 so we don't have fractions.

x = 1/2y - 3 becomes 2x = y - 6

Now substitute the second equation into the y-value of the new equation

2x = (2x + 6) - 6

2x = 2x

x can equal anything. this means there are infinite solutions

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4 years ago

I need help with B!

jolli1 [7]

Answer:

Step-by-step explanation:

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3 years ago

How much more snow fell in February 1889 than November 1888?

defon

Answer:

Step-by-step explanation:

i believe it is 4.

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3 0

3 years ago

Read 2 more answers