Since value of k is same for y/x for all values in the table so, y varies directly with x
And equation is:
Step-by-step explanation:
We need to find if y varies directly with x from the values given in the table.
If y varies directly with x then we have the equation:
where k is constant of proportionality
or we can write
If k is same for all values of x and y when (y/x=k) then we can say that y varies directly with x.
if x = -20 and y=45 then k is:
So, value of k is -2.25
if x = 1 and y=-2.25 then k is:
So, value of k is -2.25
if x = 12 and y=-27 then k is:
So, value of k is -2.25
Since value of k is same for y/x for all values in the table so, y varies directly with x
And equation is:
Keywords: Direct Relationship
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4x = 8, so x = 2
5y + 4 = 4, so 5y = 0, so y = 0
(2,0)
Answer:
480 cm^3
Step-by-step explanation:
Total volume is the sum of the volumes of the 3 cuboids.
Cuboid at the bottom:
V = l×b×h
V = 12 × 5 × 4 = 240
Both on top are identical.
Their height is 10-4= 6 cm
Each has volume = 5×4×6 = 120
Total Volume = 240 + 120 + 120
= 480 cm^3
<h2>3x4x5=60cms </h2><h2>60cm is the correct answer to the question </h2>