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3 years ago

1/5+2/4=what help me please

Mathematics

2 answers:

Vikentia [17]3 years ago

6 0

7/10 is your correct answer

kvasek [131]3 years ago

3 0

First you find the LCM of the denominators which will be 20

$\frac{1}{5} + \frac{2}{4}$
The LCM is 20.
$\frac{4}{20} + \frac{10}{20}$
The answer would be 14/20 which can be reduced to 7/10

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2 years ago

Please, Help!

Veronika [31]

Answer:

adults = 40

children = 68

Step-by-step explanation:

Let the children=c

Let the adults = a

Equations

a + c = 108 (1)

3.75a + 1.5c = 252 (2)

Multiply (1) by 1.5

1.5a + 1.5c = 162 (3)

Subtract (3) from (2)

3.75a + 1.5c = 252

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Find the number of children

a + c = 108

40 + c = 108

c = 108 - 40

c = 68

Check

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3.75 * 40 + 1.50 * 68

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3 years ago

Which of the following statements about the percentiles for the standard normal distribution are correct? A. The 90th percentile

shutvik [7]

Answer:

Correct option: (C) The 75th percentile is approximately 0.67

Step-by-step explanation:

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If x is the pth percentile of a data set then,

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