cbwarner1325
12.02.2021 •
Mathematics
Plsss help now!! You plant a 1.2 feet hemlock tree that grows at a rate of 0.33 feet per year. You also plant an
0.71 feet spruce that grows at a rate of 0.5 feet per year.
9. Enter the minimum number of years it will take for the height of the hemlock tree to be
equal to the height of the spruce tree given the current rate of growch. ROUND YOUR
ANSWER TO THE NEAREST TENTH OF A YEAR.
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Ответ:
Step-by-step explanation:
After t years,
the hemlock is 1.2 + 0.33t feet tall
the spruce is 0.71 + 0.5t feet tall
When the trees are the same height,
1.2 + 0.33t = 0.71 + 0.5t
Subtract 0.5t from both sides
1.2 - 0.17t = 0.71
Subtract 1.2 from both sides
-0.17t = 0.71-1.2 = -0.49
divide both sides by -0.17
t ≅ 2.9 years
Ответ:
Step-by-step explanation:
Ответ: