By using the given information about the inverse relation, we will get:
- Equation: y = -28/x
- Solution: y = -14
<h3>
How to get the relation between x and y?</h3>
First, we know that y varies indirectly with x, then we can write the relation as:
y = k/x.
Where k is a constant.
Then, we know that when y = 7, we have x = -4.
Replacing these we can find the value of k:
7 = k/(-4)
7*(-4) = k = -28
Then the relation between x and y is:
y = -28/x.
Now, we want to find the value of y when x = 2, then we just replace that in the above equation:
y = -28/2 = -14
So we have:
- Equation: y = -28/x
- Solution: y = -14
If you want to learn more about indirect variation:
brainly.com/question/6499629
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Answer:
The average of the provided grades are 86.75
Step-by-step explanation:
Consider the provided information.
On three examinations, you have grades of 85, 78, and 84. In order to get an A your average must be at least 90.
In the last exam you get 100 marks now calculate the average by using the formula:
86.75 is less than 90 so you will not get A.
The average of the provided grades are 86.75
Answer: 8.1ft
Step-by-step explanation:
It may help to draw it out but for this question you would have to use pythagoras' theorem.
The formula for the shorter side is a²=c²-b²
The height of this triangle is 4ft (b) and the hypotenuse (the diagonal that stretches from the top to the bottom) is 9ft (c).
When we put the numbers in the formula you get a²=9²-4²
9²=81
4²=16
a²=81-16
a²=65
Then because we want to find a on it's own you would have to square root 65 which is 8.1 (to the nearest tenth)
Answer:
The answer for the question is 3320ft
Answer:
The computer will be worth $1,850 after four years.
Step-by-step explanation:
We need to find 6.5% of $2,500.
2,500 x 0.065 = $162.50
Therefore, the computer value <em>decreases</em> by $162.50 <u>each year</u>. Since we need to know the computer value after <u>4 years</u>, we also need to<em> multiply </em>the value of decrease by 4.
162.5 x 4 = $650
Therefore, after 4 years, the computer value <em><u>will decrease</u></em> by $650.
To find the <em>whole</em> computer value after 4 years, we need to <em>subtract</em> the initial value of $2,500 by the 4-year decreasing value of $650.
2,500 - 650 = $1850
Therefore, the computer will be worth $1,850 after four years.
Hope this helps! :D
