2 years ago

What is the least common multiple (LCM) of 7 and 8?

Mathematics

1 answer:

Gnesinka [82]2 years ago

6 0

Answer:

B.56

Step-by-step explanation:

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Please help I've been getting this same problem wrong all day lol

worty [1.4K]

Answer:

$9\sqrt{2}$

Step-by-step explanation:

$=3\sqrt{2}+6\sqrt{2}$

$\mathrm{Add\:similar\:elements:}\:3\sqrt{2}+6\sqrt{2}=9\sqrt{2}$

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2 years ago

Read 2 more answers

Which expression has the same value as the one below?

sasho [114]

The answer is C. 33-10

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2 years ago

At a horse show, there are both people and horses in the ring. Maria counted 22 heads and 64 legs. How many horses and people ar

kondor19780726 [428]

There are 14 horses and 8 men.

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3 years ago

Brian runs 3 miles in 25 minutes 30 seconds, and Mary runs 4 miles in 34

Katyanochek1 [597]

Answer:

Same speed.

Step-by-step explanation:

divide Distance by speed

25.5/3=8.5mph

34/4=8.5mph

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3 years ago

As part of a quality-control program, 4 batteries from a box of 17 is chosen at random for testing. In how many ways can this te

belka [17]

Answer:

This test batch can be chosen in 2380 ways

Step-by-step explanation:

The order in which the batteries are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In how many ways can this test batch be chosen?

4 batteries from a set of 17. So

$C_{17,4} = \frac{17!}{4!(17-4)!} = 2380$

This test batch can be chosen in 2380 ways

5 0

3 years ago