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Veronika [31]
3 years ago
13

How would i calculate 1.9 minus 11/12?

Mathematics
2 answers:
Levart [38]3 years ago
4 0

Answer:

59/ 60

Step-by-step explanation:

1.9 can be expressed as 19/10

Thus, our equation becomes

19/10 -11/12.

This becomes (228 -110) / 120

= 118 / 120

Simplify by 2 to get

59/60

Effectus [21]3 years ago
3 0

The solution for \bold{1.9-\frac{11}{12}}  is 0.9833.

<u>Solution:</u>

To calculate 1.9-\frac{11}{12}, carry out the following steps ,

By converting the decimal 1.9 to fraction \frac{19}{10}, the given can be written as, \frac{19}{10}-\frac{11}{12}

By taking LCM for denominators 10 and 12 we get 60.

By multiply 19 with 6 and 11 with 5 we get both the denominator as 60.

\left(\frac{19 \times 6}{10}\right)-\left(\frac{11 \times 5}{12}\right)=\left(\frac{114}{60}\right)-\left(\frac{55}{60}\right)

Since the denominators are same, we can subtract 55 from 114 we get \frac{59}{60}.

By dividing 59 by 60, we get \frac{59}{60} =0.9833  

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Please answer all parts as I know the answers but need the work to go with them. Thus, I believe the above answers are correct.
vampirchik [111]

As the sample size n is less than 30 normal distribution is used.

The values of x are converted into z by using the formula z= x-u/ s and then the z values are found out from the table.

The limits are found by using the formula x±σz or x±sz where s= σ

As the sample size is 10 which is less than 30 the normal distribution is used.

The probability of x< 2.59 is 0.3446

The probability 2.60<X <2.63 is 0.9484

So lower and upper limits are 2.607 and 2.612

Part A

As the sample size is 10 which is less than 30 the normal distribution is used.

Part B

For given value of x= 2.59 z is obtained =0.4

x= 2.59

z= x-u/ s

z= 2.59-2.61/0.05

z= -0.02/0.05

z=- 0.4

P (X<2.59) = P(-0.4 <Z<0) = 0.5 -0.1554= 0.3446

The probability of x< 2.59 is 0.3446

Part C

For two given values of x= 2.60 and 2.63 z is obtained as =0.2 and 0.4

x1= 2.60

z1= x-u/ s

z= 2.60-2.61/0.05

z= -0.01/0.05

z=- 0.2

x2= 2.63

z2= x-u/ s

z= 2.63-2.61/0.05

z= 0.02/0.05

z= 0.4

P (2.60<X<2.63) = P(-0.2 <Z<0.4)

= P(-0.2 <Z<0)+ P(0 <Z<0.4)

=0.793 + 0.1554= 0.9484

The probability 2.60<X <2.63 is 0.9484

Part D"

p= 0.57

From the table z= 0.045

z= x-u/ s

zs= x-u

zs+u = x

x1= 0.045*0.05 +2.61= 2.61225

x2= 2.61- 0.00225= 2.60775

So lower and upper limits are 2.607 and 2.612

For further understanding of probability calculation click

brainly.com/question/25638875

#SPJ1

8 0
2 years ago
The straight line joining the points A(3,-5) and B(6,k) has a gradient of 4. Work out the value of k.
BaLLatris [955]

The straight line joining the points A(3,-5) and B(6,k) has a gradient of 4.

Gradient is the slope

So the slope of the line joining the points A(3,-5) and B(6,k) is 4

Slope of line joining two points = \frac{y_2-y_1}{x_2-x_1}

A(3,-5) and B(6,k) are (x1,y1)  and (x2,y2)

slope = \frac{y_2-y_1}{x_2-x_1}

slope = \frac{k-(-5)}{6-3}=\frac{k+5)}{3}

We know slope =4

 \frac{k+5)}{3}=4

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k + 5 = 12

k = 7

The value of k = 7

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2 years ago
Alice waters her plants every 2 days
snow_lady [41]
What is the question?
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3 years ago
(1.2x10^5)+(2.4x10^4) what is the sum
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Answer:

2.88x10^9 is the answer

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3 years ago
In a game, four cards are labeled N, S, E, and W. Two tiles are numbered 1 and 2. Two
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Answer:1/16

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