Answer:
y = 10
Step-by-step explanation:
based on the question if y varries directly as x
mathematically
y ∝ x
also, y varries inversly as z can be mathematically expressed as
y ∝ 1/z
combining the two expressions
y ∝ x ∝ 1/z
i. e
y = kx/z..... where k is the constant of proportionality
make k the subject of formulae
yz = kx
Divide both sides by x
k =yz/x
when y=100 , x = 5 z =10
k = 100 × 10/5
k = 200
to find y when x = 3 and z = 60
<h3>from the equation connecting x,y,z</h3>
k =yz/x
200 =60y/3
cross multiply
60y = 200 × 3
60y = 600
divide both sides by 60
y = 10
Let x=0.208bar or 0.20888...
1000x=208.888 and 100x=20.888 so
1000x-100x=208.888-20.888
900x=188
x=47/225
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7 x 10 - 8 is larger by approximately 30
I believe the answer is 10
22.50 divided by 9 to show how much for 1 hour. That is 2.5 so next 2.5 x 4 = 10
I don’t completely know if this is correct but I believe it is
