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3 years ago

Find the solution of the inequality -3n < 81

Mathematics

1 answer:

posledela3 years ago

8 0

Answer:

n<-27

Step-by-step explanation:

you have to get n by itself, to do this divide -3 from both sides of the equations.

-3n/-3<81/-3

n<-27

the answer is n<-27

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Desmond's Desserts made a batch of fresh scones with 2/3 of a pound of butter and 1/2 of a

NemiM [27]

$\frac{1}{6}$ or 0.167 pounds more butter was used than sugar

Solution:

Given that, Desmond's Desserts made a batch of fresh scones with 2/3 of a pound of butter and 1/2 of a pound of sugar

To find: Amount of butter used than sugar

From given information,

$\text{Butter used} = \frac{2}{3} \text{ pound }$

$\text{Sugar used } = \frac{1}{2} \text{ pound }$

To find how much butter is used than sugar, find the difference between them

$Difference = Butter\ used - Sugar\ used$

$Difference = \frac{2}{3} - \frac{1}{2}\\\\Difference = \frac{2 \times 2-1 \times 3}{3 \times 2}\\\\Difference =\frac{4-3}{6}\\\\Difference =\frac{1}{6} = 0.167\\\\$

Thus $\frac{1}{6}$ or 0.167 pounds more butter was used than sugar

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3 years ago

Nick, Paul and krutika share £80 in a ratio 1:1:2 how much money does each person get

Westkost [7]

Answer:

£20

Step-by-step explanation:

First you add 1 ,1 ,2 which =4

Next you divide 80 by 4 which give you the answer 20.

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2 years ago

Tasha graphs a star with one tip at point S(-3,1). What are the coordinates of the corresponding point after a 90 rotation abo

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Answer:

corresponding point after a 90° rotation is (1,3)

Step-by-step explanation:

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2 years ago

Karl is asked to find the probability of getting 2 heads and 2 tails on 4 coin tosses. This is a simple event. True or false

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3 years ago

Read 2 more answers

A neuroscientist measures the reaction times (in seconds) during an experimental session in a sample of cocaine-addicted (n = 8)

Marysya12 [62]

Answer:

14.69 seconds

Step-by-step explanation:

The weighted mean is used to calculate the mean of numbers which don't have the same "weight" or statistical relevance. In this case, that relevance is based on the sample size of each group from which the mean reaction times were obtained.

For all three samples, the weighted mean is obtaining by multiplying each one of the mean reaction times by its n value, adding them, and dividing that result by the sum of all n values.

$WM=\frac{11*8+18*12+13*6}{8+12+6} =14.69\\$

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3 years ago