Answer:
-1y + z
Step-by-step explanation:
2y + z - 3y [Given Expression]
-1y + z [Combine like-terms]
Answer:

Step-by-step explanation:
Given
Let R represents rows and C represents Columns
When R = 8, C = 25
When R = 10, C = 20
Required
Given that there exist an inverse variation, determine the constant of proportionality;
We start by representing the variation;

Convert proportion to an equation

Where k is the constant of proportion;

Multiply both sides by C

Reorder

<em>When R = 8, C = 25;</em>
<em>The equation </em>
<em>becomes</em>


<em>When R = 10, C = 20;</em>
<em>The equation </em>
<em>becomes</em>


Hence, the concept of proportionality is 200
Answer:
y=12
Step-by-step explanation:
y is inversely proportional to x
y=k/x
k is a constant of proportionality
k=yx
y1x1=y2x2
8(9)=y2(6)
y2=8(9)/6
y2=12
Answer:
The average weight of three apples = 118 g
Estimated average weight of 36 apples = 1416 g or 1 kg 416 g
Total weight of 36 apples = 50976 g or 50 kg 976 g