Please help on this!
1 answer:
Answer:
A.
Step-by-step explanation:
Subtracting a positive number is like adding a negative number, as in you move to the left on a number line. A negative number is the opposite of the positive, so you move to the right instead, which is equivalent to adding.
Make sure there are parenthesis around the negative number, otherwise, you might be seeing one minus sign as two!
Hope this helps!
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<u>Answer-</u>
<em>The value of y is when x=7 and z=4.</em>
<u>Solution-</u>
As given in the question, y is directly proportional to x, so
-----------------1
And also y is directly proportional to z, so
-----------------2
Combining equation 1 and 2,
Where,
k = proportionality constant
When x=6 and z=1, y=4. Putting theses values,
Now, we have to find the value of y, when x=7 and z=4
Therefore, the value of y is when x=7 and z=4.