All categories

2 years ago

What should I do I don't know if I did it right

Mathematics

1 answer:

yKpoI14uk [10]2 years ago

5 0

Answer:

$\frac{7}{8}$

Step-by-step explanation:

you first need to change the mixed number to an improper fraction

$\frac{13}{8}-\frac{3}{4}$

then multiply the second fraction by 2 so that the denominator is the same in both fractions

$\frac{13}{8} -\frac{6}{8}$

$\frac{7}{8}$

You might be interested in

How are natural numbers, whole numbers and integers used in everyday life?

Nezavi [6.7K]

Natural numbers: Counting things! You look around your room and see an electronic device, then another, then another! You just counted to 3 using the natural numbers.

Whole numbers! You try to look for electronic devices and realise that they’re all gone. You have zero electronic devices, and you just used whole numbers.

You go online to find where your electronic devices went, and realise they were taken because you’re in debt to the bank so they took some of your stuff. You’re in negative numbers, and now you’ve used integers.

4 0

3 years ago

Based on historical data, your manager believes that 41% of the company's orders come from first-time customers. A random sample

TEA [102]

Answer:

The probability that the sample proportion is between 0.35 and 0.5 is 0.7895

Step-by-step explanation:

To calculate the probability that the sample proportion is between 0.35 and 0.5 we need to know the z-scores of the sample proportions 0.35 and 0.5.

z-score of the sample proportion is calculated as

z= $\frac{p(s)-p}{\sqrt{\frac{p*(1-p)}{N} } }$ where

p(s) is the sample proportion of first time customers
p is the proportion of first time customers based on historical data

N is the sample size

For the sample proportion 0.35:

z(0.35)= $\frac{0,35-0.41}{\sqrt{\frac{0.41*0.59}{72} } }$ ≈ -1.035

For the sample proportion 0.5:

z(0.5)= $\frac{0,5-0.41}{\sqrt{\frac{0.41*0.59}{72} } }$ ≈ 1.553

The probabilities for z of being smaller than these z-scores are:

P(z<z(0.35))= 0.1503

P(z<z(0.5))= 0.9398

Then the probability that the sample proportion is between 0.35 and 0.5 is

P(z(0.35)<z<z(0.5))= 0.9398 - 0.1503 =0.7895

6 0

3 years ago

A shadow is cast by a pole. The angle of elevation from the end of the shadow to the top of

Oksana_A [137]

DAnswer:

Step-by-step explanation:

4 0

3 years ago

Yesterday,Mr.Swenson made 2 3/4 quarts of strawberry jam and 1 1/8 quarts of raspberry jam. How much more strawberry jam did he

Ivenika [448]

Step-by-step explanation:

So I found the l.c.m which is 8 and I multiplied it by the numbers and then

The subtracted the both mixed numbers and I got an answer of 15/8

3 0

3 years ago

Please answer correctly !!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!

boyakko [2]

Answer:

Step-by-step explanation:

y = 7^2

= 49

5 0

3 years ago

What should I do I don't know if I did it right​

What should I do I don't know if I did it right