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frozen [14]
3 years ago
9

How can proportional reasoning help solve a problem?

Mathematics
1 answer:
Lisa [10]3 years ago
5 0
The reasoning explains the answer
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London has a collection of 260 coins. How many coins represent 25% of her collection?
Sergeu [11.5K]

Answer:

65 coins

Step-by-step explanation:

Set this problem up with a porportion.

\frac{?}{260} \frac{25}{100}

After that, cross multiple and divide.

25 times 260. Then divide by 100. That is then your answer.

8 0
3 years ago
Plz solve number 23 will give 30 points plz
Anna007 [38]
3(1)-1= 2
3(2)-1= 5
3(3)-1= 8
3(4)-1= 11
3(5)-1= 14

6 0
3 years ago
A bucket has 16 tennis balls and 10 ping pong balls . What is the probability of selecting a ping pong ball , replacing it and t
Semmy [17]

Answer:

40/169

Step-by-step explanation:

P(pp,tennis) = \frac{10}{26} × \frac{16}{26} = 40/169 in simplified form

3 0
3 years ago
Please Help ASAP Evaluate (64^1/2)^-2/3
Naya [18.7K]

Answer:

Option A.

Step-by-step explanation:

The given expression is,

[(64)^{-\frac{1}{2}}]^{-\frac{2}{3}}

By solving the given expression,

(64)^{-\frac{1}{2}}=\frac{1}{(64)^{\frac{1}{2}}} [Since a^{-1}=\frac{1}{a}]

           =\frac{1}{\sqrt{64}}

           =\frac{1}{8}

Now the expression will be,

[(64)^{-\frac{1}{2}}]^{-\frac{2}{3}}=(\frac{1}{8})^{-\frac{2}{3}}

                 =8^{\frac{2}{3}}

                 ={(\sqrt[3]{8})^2}

                 = 2²

                 = 4

Therefore, value of the given expression will be 4.

Option (A) will be the answer.

7 0
3 years ago
An investment broker puts 1/12 of his paycheck into a retirement account every quarter? How much of his $84,000 salary is put in
Deffense [45]

Answer:

<u>$7000</u> of his salary is put into his account each quarter.

Step-by-step explanation:

Given:

An investment broker puts 1/12 of his paycheck into a retirement account every quarter.

His salary is $84,000.

Now, to find the amount of his salary put into his account each quarter.

So,to get the amount of his salary:

\frac{1}{12}\ of\ \$84,000.

=\frac{1}{12} \times 84000

=\frac{84000}{12}

=\$7000.

Therefore, $7000 of his salary is put into his account each quarter.

3 0
3 years ago
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