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2 years ago

A soccer game is 90 minutes long. 36 minutes have passed.

Mathematics

1 answer:

laila [671]2 years ago

5 0

Answer: 40%

Step-by-step explanation:

The answer is 40%. 36/90 is 0.4 in decimal form,and since percentages are out of a hundred, the answer is 40%

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sweet [91]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

Principal=$100 rate=5% years=3 what is the interest?

hammer [34]

Answer:

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Step-by-step explanation:

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2 years ago

Let Z={a,c,{a,b}}. What is |Z|?

Lina20 [59]

$Z=\{a,c,\{a,b\}\}$

$\boxed{|Z|=3}$ (treat $\{a,b\}$ as one element of $Z$ )

The power set of $Z$ is

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1. $\{a,c\}\subseteq Z$ is true because both $a\in Z$ and $c\in Z$ .

2. $a\in Z$ is true.

3. $\{c\}\subseteq Z$ is true (same reason as part 1).

4. $\{c\}\in Z$ is false because $Z$ does not contain the set $\{c\}$ , rather just the element $c$ itself.

5. $b\in Z$ is false because the element $b$ on its own simply is not in $Z$ . That $b\in\{a,b\}$ does not mean $b\in Z$ , but that $b$ belongs to a subset of $Z$ .

6. $\{a,b\}\in Z$ is true.

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3 years ago

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Answer:

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Step-by-step explanation:

75 = 4x + 7

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2 years ago

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