Logan genetically engineered a new type of fir tree and a new type of pine tree. The combined height of one fir tree and one pin e tree is 21 meters. The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree. How tall are the types of trees that Logan genetically engineered?
1 answer:
Let f be the height of the fir trees Let p be the height of the pine trees We know from the problem that f + p = 21 and 4f = 24 + p rearrange the 2nd equation to get p = 4f - 24 and substitute into the other equation so... f + 4f - 24 = 21 5f - 24 = 21 5f = 45 f = 9 - height of the fir tree substitute back into the 1st equation 9 + p = 21 p = 12 - height of the pine tree
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7 | 7
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x = ±√2.7²
x = ±7√2
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Step-by-step explanation:
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