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We know that the variation is proportianal, that is we can relate the quantities as:
where y is the mass of the body and x is the mass of water. From the values given we have that:
hence the constant of proportionality is 3/2. Now, if the mass of the water is 75, then the mass of the body is:
Therefore, the mass of the body is 112.5 kilograms
Answer:
Step-by-step explanation:
The standard equation of direct variation is
y = kx
where k = constant of variation
We start with
y = kx
Since we are give one ordered pair, we use its coordinates for x and y, and we solve for k. We are told that when x = 14 ounces, y = $7.
7 = k * 14
k = 7/14
k = 1/2
Now that we know k = 1/2, we can write the direct variation equation:
In order to model the expression -3.5 - (2.7), we need to start from -3.5 on the number line and move towards the left (since -2.7 is a negative value) by -2.7 units
Number lines are used to represents the position of a number either negative or positive.
- The values to the right of zero on the number line are positive values while those to the left of zero are negative:
In order to model the expression -3.5 - (2.7), we need to start from -3.5 on the number line and move towards the left (since -2.7 is a negative value) by -2.7 units
Learn more here: brainly.com/question/13270685
