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2 years ago

85/18 divided by 17/18

Mathematics

2 answers:

schepotkina [342]2 years ago

8 0

Your answer for this question is 5

1.) When you divide 85/18 by 17/18, the first step you want to take is switch the reciprocal.

$\frac{85}{18}$ ÷ $\frac{17}{18}$ =

$\frac{85}{18}$ × $\frac{18}{17}$

2.) When you switch the reciprocal, you then division sign is changed to times.

$\frac{85}{18}$ × $\frac{18}{17}$

3.) Now you simply multiply

$\frac{85}{18}$ × $\frac{18}{17}$ = $\frac{1530}{306}$

4.) Last step, you divide

$\frac{1530}{306}$ = 5

Hope This Helps.

Please Mark as Brainliest!!!

zmey [24]2 years ago

3 0

Answer:

Step-by-step explanation:

85 * 18 / 18 * 17

18 cancels out.

85/17

= 5

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Jenny multiplies the square root of her favorite positive integer by $\sqrt{2}$. Her product is an integer. a) Name three number

Dmitry [639]

Answer:

Part a) $2,50,18$

Part b) When Jenny divides the square root of her favorite positive integer by $\sqrt{2}$ , she gets an integer

Step-by-step explanation:

Let

x-------> the favorite positive integer

Part a)

1) For $x=2$

$\sqrt{2}*\sqrt{2}=\sqrt{4}=2$ -----> the product is an integer

The number $x=2$ could be Jenny favorite positive integer

2) For $x=50$

$\sqrt{50}*\sqrt{2}=\sqrt{100}=10$ -----> the product is an integer

The number $x=50$ could be Jenny favorite positive integer

3) For $x=18$

$\sqrt{18}*\sqrt{2}=\sqrt{36}=6$ -----> the product is an integer

The number $x=18$ could be Jenny favorite positive integer

Part B)

1) For $x=2$

$\sqrt{2}/\sqrt{2}=\sqrt{1}=1$ -----> the result is an integer

2) For $x=50$

$\sqrt{50}/\sqrt{2}=\sqrt{25}=5$ -----> the result is an integer

3) For $x=18$

$\sqrt{18}/\sqrt{2}=\sqrt{9}=3$ -----> the result is an integer

Therefore

When Jenny divides the square root of her favorite positive integer by $\sqrt{2}$ , she gets an integer

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2 years ago

In general, the probability that a blood donor has Type A blood is 0.40.Consider 8 randomly chosen blood donors, what is the pro

postnew [5]

Answer:

The probability that more than half of them have Type A blood in the sample of 8 randomly chosen donors is P(X>4)=0.1738.

Step-by-step explanation:

This can be modeled as a binomial random variable with n=8 and p=0.4.

The probability that k individuals in the sample have Type A blood can be calculated as:

$P(x=k) = \dbinom{n}{k} p^{k}(1-p)^{n-k}\\\\\\P(x=k) = \dbinom{8}{k} 0.4^{k} 0.6^{8-k}\\\\\\$

Then, we can calculate the probability that more than 8/2=4 have Type A blood as:

$P(X>4)=P(X=5)+P(X=6)+P(X=7)+P(X=8)\\\\\\P(x=5) = \dbinom{8}{5} p^{5}(1-p)^{3}=56*0.0102*0.216=0.1239\\\\\\P(x=6) = \dbinom{8}{6} p^{6}(1-p)^{2}=28*0.0041*0.36=0.0413\\\\\\P(x=7) = \dbinom{8}{7} p^{7}(1-p)^{1}=8*0.0016*0.6=0.0079\\\\\\P(x=8) = \dbinom{8}{8} p^{8}(1-p)^{0}=1*0.0007*1=0.0007\\\\\\\\P(X>4)=0.1239+0.0413+0.0079+0.0007=0.1738$

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2 years ago

A candy store sells caramels and milk chocolate by the pound the table below shows the total cost in dollars for a pound of each

MakcuM [25]

The cost of $1\frac{3}{4}$ pounds chocolate milk is $6.25 more than the cost of $1\frac{3}{4}$ pounds of Caramel.

Step-by-step explanation:

Given,

Cost of one pound of Caramels = $10.28

Cost of $1\frac{3}{4}$ pounds of Caramel = $10.28*1\frac{3}{4}$

Cost of $1\frac{3}{4}$ pounds = $10.28*\frac{7}{4}=\frac{71.96}{4}= \$17.99$

Cost of one pound of chocolate milk = $13.85

Cost of $1\frac{3}{4}$ pounds = $13.85*1\frac{3}{4}=13.85*\frac{7}{4}$

Cost of $1\frac{3}{4}$ pounds = $\frac{96.95}{4}=\$24.24$

Difference = 24.24 - 17.99 = $6.25

The cost of $1\frac{3}{4}$ pounds chocolate milk is $6.25 more than the cost of $1\frac{3}{4}$ pounds of Caramel.

Keywords: difference, multiplication

Learn more about multiplication at:

#LearnwithBrainly

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2 years ago

How is adding two negative fractions similar to adding two negative integers?

Aloiza [94]

Answer:

When you are adding or subtracting a negative fraction, you usually want to consider the numerator as negative. The method is just the same, except now you may need to add negative or positive numerators. The LCM of and is . To add the fractions with unlike denominators, rename the fractions with a common denominator.

Step-by-step explanation:

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2 years ago

Nyoko needs to be at school at 7:45 AM. It takes her 15 minutes to walk to school, 5/12 hour to eat breakfast, 0.7 hour to get d

defon

So, she wants to be at school at 7.40 (5 mins early)

she needs:

15 mins
5/12 hours (which is $\frac{5}{12} = \frac{25}{60}$ , so 25 mins

so far: 40 mins

then 0.7 and 0.15: we can add those, since they're in decimals: 0.85.

how many minutes is this?

$\frac{85}{100} *60= \frac{85}{10} *6=\frac{85}{5} *3=\frac{13}{1} *3=39$

so 39 mins.

together with the previous 40, it's 79 minutes, which is 1 hour and 19 minutes: so she needs to wake up 1 hour and 19 minutes before 7.40 , which is

6.21!

6 0

2 years ago