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ivolga24 [154]
3 years ago
7

What is 7 1/5 - 6 2/5 =?

Mathematics
2 answers:
CaHeK987 [17]3 years ago
6 0

In my opinion, I like using improper fractions, but that's up to you:

7 1/5 = 36/5

6 2/5 = 32/5

36/5 - 32/5 = 4/5

White raven [17]3 years ago
4 0

Answer:

=\frac{4}{5}

Step-by-step explanation:

7\frac{1}{5} - 6\frac{2}{5}

=\frac{36}{5} - \frac{32}{5}

=\frac{36-32}{5}

=\frac{4}{5}

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Answer:

<h2>B. 3,4 Volt</h2>

Step-by-step explanation:

Here we need to use Ohm's Law, because we have electric current, voltage and resistances. This law state: V=IR

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The pair 4 and 8 ohms are parallel, so we solve:

R_{T}=\frac{1}{R_{1}}+\frac{1}{R_{2}}

\frac{1}{R_{T}}=\frac{1}{4}+\frac{1}{8}=\frac{8+4}{32}=\frac{12}{32}=\frac{3}{8}

Which is, R_{T}=frac{8}{3}

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poizon [28]

Answer:

A student have to take 2.5 credit hours so that the tuition costs are equal.

Step-by-step explanation:

We are given the following in the question:

Community college:

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where h is the number of credit hours taken.

State college:

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Equating the two equations, we get,

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Thus, a student have to take 2.5 credit hours so that the tuition costs are equal.

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