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3 years ago

Which fractions have a LCD of 84? A. 3/4, 1/7, 1/6 B. 2/3, 1/6, 1/42 C. 2/27, 1/7, 1/3 D. 2/3, 1/6, 1/7

Mathematics

2 answers:

ExtremeBDS [4]3 years ago

5 0

Answer:

A. $\frac{3}{4} , \frac{1}{7} , \frac{1}{6}$

Step-by-step explanation:

4 × 16 = 84

7 × 12 = 84

6 x 14 = 84

Hope this helps!

Nata [24]3 years ago

4 0

Hope this helped you!

/21 and /84

/28 and /42

/28 and /84

/42 and /84

/84 and /84

Answer:

Any with denominators of which their lowest common multiple is 84; for pairs of fractions these are:

whole numbers and /84

/2 and /84

/3 and /28

/3 and /42

/3 and /84

/4 and /21

/4 and /42

/4 and /84

/6 and /28

/6 and /84

/7 and /12

/7 and /84

/12 and /14

/12 and /21

/12 and /28

/12 and /42

/12 and /84

/14 and /84

/21 and /28

There are further possible fractions when there are three at a time, and so on upwards. With 12 fractions at a time they can all have different denominators, namely:

whole numbers, /2, /3, /4, /6, /7, /12, /14, /21, /28, /42 and /84

Though there are other possibilities with one or more repeated denominators.

With 13 or more fractions, some of them of necessity will have the same denominator since there are only 12 factors of 84, namely: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42 & 84.

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Answer:

$Q(t) = 4.5(1.013)^{t}$

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Step-by-step explanation:

The world population can be modeled by the following equation.

$Q(t) = Q(0)(1+r)^{t}$

In which Q(t) is the population in t years after 1980, in billions, Q(0) is the initial population and r is the growth rate.

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What will the world population be at the beginning of 2019 ?

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The world population at the beginning of 2019 will be of 7.45 billion people.

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3 years ago

Kaylee is selling candles to raise money for her lacrosse team. The large candles sell for $25 each and the small

EastWind [94]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

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3 years ago

Hhelp me pleaseeeeee

svetlana [45]

A. Area = ½b × h

= ½ × 16 × 9

= 72

B. Area = b × h

= 26 × 18

= 468

C. Area = a²

= 11²

= 121

D. Area = ½(a+b) × h

= ½(6+21) × 8

= 108

Hope this helps :)

Please consider marking my answer the brainliest!

4 0

3 years ago

What is the smallest value of 122

attashe74 [19]

121.5
121.5 rounded to nearest whole number is 122 --> 121.49 rounded to the nearest whole number is 121

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3 years ago