$\bf 3+12\times \cfrac{5}{(5+15)}\implies 3+12\times \cfrac{5}{\underset{\uparrow }{20}}\implies 3+12\times \cfrac{1}{4}\implies 3+\cfrac{\stackrel{\downarrow }{12\times 1}}{4} \\\\\\ 3+\cfrac{12}{4}\implies 3+\stackrel{\downarrow }{3}\implies 9$

3 0

3 years ago

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33. A competition question requests students to form a three-digit number.

aniked [119]

Answer:

532

Step-by-step explanation:

532 = 2·2·7·19

There are 24 possible 3-digit numbers from the set {2, 3, 5, 7}. Of those, 6 have four factors: 372, 375, 532, 572, 732, 735.

The sums of factors of these numbers are ...

38, 18, 30, 28, 68, 22

The number of interest is 532.

7 0

3 years ago

What is the unit rate of 42 dollars for 3 books?

USPshnik [31]

42/3 = 14

I think the unit rate is $14.

I hope this helps! :D

8 0

3 years ago

If the vertices of a right triangle are located at (2,6), (2,3), and (6,3), what is the length of the hypotenuse?

Sergio [31]

Answer:

5 units

Step-by-step explanation:

ez pz lemon squeezy. hippity hoppity your math is now my property. splish splash your opionion is trash

7 0

3 years ago