3 years ago

A person has 20 coins consisting of dimes and quarters if the total amount of money is $4.70 how many quarters are there

Mathematics

1 answer:

aalyn [17]3 years ago

6 0

18 quarters and 2 dimes

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Solve for n. 2/3(1+n)=-1/2n

notka56 [123]

Answer:

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Step-by-step explanation:

And yh I'm sorry if I got it wrong

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3 years ago

6.) Alan, Becky, Jesus, and Mariah are four students in the chess club. If two of these students will be selected to represent t

Artist 52 [7]

Let's begin by listing out the information given to us:

There are four students: n = 4

Number of students to be selected: r = 2

To calculate the combination of 2 students to be chosen, we use:

$\begin{gathered} ^4C_2=\frac{n!}{(n-r)!}=\frac{4!}{(4-2)!}=\frac{4!}{2!} \\ ^4C_2=\frac{4\cdot3\cdot2\cdot1}{2\cdot1}=\frac{4\cdot3}{1}=12 \\ ^4C_2=12 \end{gathered}$

Therefore, there 12 possible combinations from these

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1 year ago

HELPPP! I’ll mark Brainliest (NO joke answers)

Licemer1 [7]

Answer: benis

jk, the answer is 3

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3 years ago

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Papessa [141]

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Solve the simplify 1/4 times 4/7

Nutka1998 [239]

$\dfrac{1}{\not4_1}\cdot\dfrac{\not4^1}{7}=\dfrac{1}{1}\cdot\dfrac{1}{7}=\boxed{\dfrac{1}{7}}$

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3 years ago