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2 years ago

I need help to find the lcm of 81 and 3

Mathematics

2 answers:

velikii [3]2 years ago

8 0

Answer:

81 is the LCM of 81 and 3

Step-by-step explanation:

81 is the smallest (least) number that both (common) 81 and 3 "go into" (multiple)

81 goes into 81.

3 goes into 81.

81 is the smallest number that they both go into.

Lina20 [59]2 years ago

4 0

Hi there,

please see below for solution steps :

________

$\ast$ Key moment to solving this problem :

the LCM stands for least common multiple

Okay. Now, what is the lcm of 3 and 81?

One way to find the lcm is : list several multiples of each number.

However, it's not a really efficient way, because listing all the multiples of 3 until we get to 81 is time-consuming!

So we can ask ourselves one question : Is 81 divisible by 3?

Sure! with this in mind, let's ask ourselves another question : what is the lcm of 81 and 3?

The answer to that is $\boldsymbol{81}$ .

Hope the answer - and explanation - made sense to you,

happy studying !! $\bold{Frozen \ melody}$

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Step-by-step explanation:

Given:

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$\sqrt{68-(4\sqrt{2} ^{2} )}$ = $\sqrt{68 - 32}$ = 6 units.

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3 years ago

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3 years ago

Chen is bringing fruit and veggies to serve at an afternoon meeting. He spends a total of $28.70 on 5 pints of cut veggies and 7

cricket20 [7]

Answer:

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Step-by-step explanation:

* Lets change the story problem to equations and solve them to find

the answer

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- He spends a total of $28.70 on 5 pints of cut veggies and 7 pints

of cut fruit

- The food cost is modeled by the equation 5 v + 7 f = 28.70, where

v represents the cost of one pint of cut veggies and f represents

the cost of one pint of cut fruit

∴ The first equation is 5 v + 7 f = 28.70 ⇒ (1)

- The cost of each pint of fruit is $2.85

∵ f represents the cost of one pint of cut fruit

∴ f = 2.85

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3 years ago

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3 years ago