3 years ago

A landscaping company needs

1 answer:

3 0

Let
x--------> volume of <span>35% fertilizer
y--------> </span>volume of 25% fertilizer

we know that
x+y=220-----> x=220-y-----> equation 1
x*0.35+y*.25=220*.29-----> equation 2

substitute equation 1 in equation 2
[220-y]*0.35+0.25*y=63.8----> 77-0.35*y+0.25*y=63.8
0.10*y=13.2------> y=13.2/0.10----> y=132 gal
x=220-y----> x=220-132----> x=88 gal

the answer is
88 gal of 35% fertilizer
132 gal 25% fertilizer

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Step-by-step explanation:

In order to solve this, we are trying to find the value of $x$ . Basically, $x$ is a placeholder for a number that is unknown. Some number minus 3 is equal to 21.