Answer:
see explanation
Step-by-step explanation:
Given that t and w vary inversely then the equation relating them is
t = 
← k is the constant of variation
To find k use the condition t = 
when w = 4
k = tw = × 4 = 
t = 
← equation of variation
When w = 9, then
t = 
= 
Answer:
1
Step-by-step explanation:
V= 1/3^r²h
V= (^r²h) ÷ 3
Cross multiply
3V = ^r²h
Divide both side by the coefficient of r²
3V ÷ (^h) = r²
Find the root of both side
r = square root of 3V ÷ (^h)
Answer:
x = 11/3
Step-by-step explanation:
x - 2/3 = 3
³⁾x = ³⁾3 + 2/3
3x = 9 + 2
3x = 11
x = 11/3
Answer:
346/625 and 55.36/100 are both fractions for 0.5563
