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Usimov [2.4K]
3 years ago
8

two variables are negatively associated​ if, whenever the value of one variable​ increases, the value of the other variable decr

eases. Will the following variables have positive​ correlation, negative​ correlation, or no​ correlation?
Mathematics
1 answer:
Flura [38]3 years ago
6 0

Answer:

The correct answer is: Negative correlation.

Step-by-step explanation:

The negative correlation determines the relationship between two variables, it says that there is an inverse relationship between two variables, whenever one of them is decreasing, the other one increases, and it's the same in reverse.

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100% pure gold is 24 karat gold, which is too soft to be made into jewelry most call Jory is 14 karat gold proximally 58% gold 1
denis-greek [22]

Answer:

The amount of gold used in a 200 g 14 gold bracelet is 116 g.

Step-by-step explanation:

Since a 14 karat jewell is stated to have aproximally 58 % of it's weigh in gold we need to take the total weigh of the jewel in question and find that percentage of it's weigh. In order to find that percentage we'll first convert that number into a decimal, we do that by dividing it by 100, so we have 58% = 58/100 = 0.58 we can multiply this value by the weigh of the jewel to find the amount of gold used. So we have:

gold used = total weigh*0.58 = 200*0.58 = 116 g

5 0
3 years ago
Solve for x. 19x+rx=−37x+w
pshichka [43]
Get all the x terms on one side, and the w on the other.
Add 37x on both sides to get 56x+rx=w.
Use the distributive property backwards to get x(56+r)=w.
Divide by 56+r on both sides to get x=w/(56+r)
3 0
3 years ago
Smith has a dairy farm in which the number of cows increases at the rate of 5% per annum which results in the increase in the pr
marshall27 [118]

Answer:

d. 194481

Step-by-step explanation:

We solve this question using exponential growth rate formula

This is given as:

y = a(1 + r) ^t

Where y = Amount after time t

a = Initial amount = 160000

r = growth or increase rate = 5% = 0.05

t = time in years = 4

y = 160000(1 + 0.05)⁴

y = 160000(1.05)⁴

y = 194481

Therefore, the number of cows needed after 4 years to fulfill the requirement of the milk is 194481

7 0
3 years ago
Please help !!!! Thanks in advanced
mixer [17]
This one is answer D
4 0
3 years ago
Seth is training for a marathon he’s aleady running 2.5 miles 5 time a week. It takes him 30 minutes to run 2.5 miles He calcula
Maslowich

Answer:

Option C

Step-by-step explanation:

Given : Seth is training for a marathon he’s already running 2.5 miles 5 time a week. It takes him 30 minutes to run 2.5 miles

To find : How long will it take him to run the full 26 miles.

Solution :

Let x be the time taken to cover 26 miles.

It takes him 30 minutes to run 2.5 miles

For 1 minute it cover \frac{2.5}{30} miles.

For x minute it cover 26 miles

For 1 minute it cover \frac{26}{x} miles.

Equating the equation we get,

\frac{2.5}{30}=\frac{26}{x}

\frac{30}{2.5}\times 26=x

x=26\times 12

x=312

Therefore, Option C is correct.

7 0
3 years ago
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