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3 years ago

Add the following fractions 3/8+1/9

Mathematics

1 answer:

Lina20 [59]3 years ago

8 0

<h2><em>The simplest form is 35/72. Hope this helps. Have a Nice Day!</em></h2>

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Please help me with my maths homework asap. Thank youuu

notka56 [123]

A = 3.141 * (3km^2). Just put that into a calculator and bingo

5 0

3 years ago

Read 2 more answers

-7.4r - 6.31 = 3.23 - 5.6r

nikdorinn [45]

Answer:

r=−5.3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−7.4r−6.31=3.23−5.6r

−7.4r+−6.31=3.23+−5.6r

−7.4r−6.31=−5.6r+3.23

Step 2: Add 5.6r to both sides.

−7.4r−6.31+5.6r=−5.6r+3.23+5.6r

−1.8r−6.31=3.23

Step 3: Add 6.31 to both sides.

−1.8r−6.31+6.31=3.23+6.31

−1.8r=9.54

Step 4: Divide both sides by -1.8.

−1.8r/−1.8=9.54/−1.8

r=−5.3

4 0

3 years ago

n HP laser printer is advertised to print text documents at a speed of 18 ppm (pages per minute). The manufacturer tells you tha

Dominik [7]

Answer:

0.321 is the probability that their mean printing speed of the sample is greater than 17.99 ppm.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 17.39 ppm

Standard Deviation, σ = 4.25 ppm

Sample size = 11

We are given that the distribution of printing speed is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

P(printing speed of the sample is greater than 17.99 ppm.)

P(x > 17.99)

$P( x > 17.99) = P( z > \displaystyle\frac{17.99-17.39}{\frac{4.25}{\sqrt{11}}}) = P(z > 0.468229)\\\\P( z > 0.468229) = 1 - P(z < 0.468229)$

Calculating the value from the standard normal table we have,

$1 - 0.679 = 0321= 32.1\%\\P( x > 17.99) = 32.1\%$

Thus, 0.321 is the probability that their mean printing speed of the sample is greater than 17.99 ppm.

8 0

3 years ago

The sum of a number times 3 and 7 equals 2

ella [17]

3 x + 7 = 2
3 x = 2 - 7
3 x = - 5
x = - 5/3

3 ( -5/3) + 7 = - 15/3 + 7 = - 5 + 7 = 2

7 0

3 years ago

ILL GIVE BRAINLIEST

r-ruslan [8.4K]

Answer:

680

Step-by-step explanation:

8500x.02x4=680

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2 years ago