All categories

3 years ago

What is the answer to 3 4/5 + 2 3/8=

Mathematics

1 answer:

8090 [49]3 years ago

4 0

Answer:

6 $\frac{7}{40}$

Step-by-step explanation:

original equation: $3\frac{4}{5}+ 2 \frac{3}{8}$

put into mixed numbers: $\frac{19}{5} + \frac{19}{8}$

find the lowest common denominator: 40

adjusted to LCD: $\frac{152}{40} + \frac{95}{40\\}$ $=\frac{247}{40}$

152+ 95= 247

247/40= 6.175

0.175 as a fraction is $\frac{7}{40}$

answer: 6 $\frac{7}{40}$

You might be interested in

From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-ciga

jasenka [17]

Answer:

The 90% confidence interval is (0.1897, 0.2285).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

Z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$

For this problem, we have that:

From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-cigarette) in the past week. This means that $n = 1186, \pi = \frac{248}{1186} = 0.2091$

Construct a 90% confidence interval to estimate the population proportion of Americans age 18-29 who vaped in the past week.

So $\alpha = 0.10$ , z is the value of Z that has a pvalue of $1 - \frac{0.10}{2} = 0.95$ , so $z = 1.645$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 - 1.645\sqrt{\frac{0.2091*0.7909}{1186}} = 0.1897$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 + 1.645\sqrt{\frac{0.2091*0.7909}= 0.2285$

The 90% confidence interval is (0.1897, 0.2285).

3 0

3 years ago

Plzz answer these!!!!!!!!! will give brainliest!!!!!!!!

olga55 [171]

1.

No.

Equation: x-25=40

Variable represents number of donuts

2.

8/3=x

Variable represents ounces of milk

/ means divided by

3.

50-12=x

Variable represents how many hours you work

Sorry for not doing 4

8 0

3 years ago

an art student wants to make a model of an ancient building. the length of the building is 1.6 times its width. The length of th

Ludmilka [50]

I think it would be 17.5in

Hope this helps!!

3 0

3 years ago

This season, the probability that the Yankees will win a game is 0.5 and the probability that the Yankees will score 5 or more r

NemiM [27]

Answer:

The answer is .64

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Please help me if possible

ss7ja [257]

Answer: 8 cm

Step-by-step explanation:

To do this, we just need to divide 256 by each of the numbers.

First let’s divide 256 by 8

256/8=32

Then divide 32 by 4

32/4 = 8.

Therefore your answer is 8 cm.

3 0

3 years ago