By rewriting the equation from step 1 substituting the value of k into it, the value of x is 22.5
A direct variation is a type of variation that has two types of variables in which a variable can be expressed in terms of the other with its constant.
For example;
If x varies directly as y
<h3>Step 1:</h3>
Then
- x
y - x = ky ; where k is constant
<h3>Step 2:</h3>
The original question says:
- if x varies directly as y, and x = 9 when y = 6, find x when y = 15
∴
x = ky
9 = k × (6)
k = 9/6
k = 1.5
<h3>Step 3:</h3>
Now, we can rewrite the equation from step 1 substituting the value of k into it:
∴
x = ky
The value of (x) will be:
x = 1.5 (15)
x = 22.5
Learn more about Direct variation here:
brainly.com/question/25798903
Answer: Delayed acceleration technique
Explanation:
The element that would melt at a higher temperature than the standard temperature is iron (Fe).
<h3>Melting point</h3>
The term melting point refers to the point where a solid is converted to a liquid. A pure substance has a sharp melting point while an impure substance melts over a temperature range.
Metals have a very high melting point hence the element that would melt at a higher temperature than the standard temperature is iron (Fe).
Missing parts:
At standard pressure, which element has a melting point higher than standard temperature?
(1) F2 (3) Fe
(2) Br2 (4) Hg
Learn more about melting point: brainly.com/question/491382
In order to have the result of the above calculation in Cell E7, you need to use the formula<u>, "=E6 - E5."</u>
<h3>Features of Excel</h3>
- Allows for calculations from basic math to complex finance.
- For subtraction, can simply use the minus (-) to deduct the figure in a cell from another cell.
To subtract the 250 in E6 from the selling price in E5, put an equal sign in E7 and select E5, put a minus (-) sign and then select E6. Press enter.
To extend this to other products, drag the part highlighted in the attachment across to the other products.
In conclusion, Excel can be quite helpful.
Find out more problems on Excel at brainly.com/question/25879801.
Answer:
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