3 years ago

21. Andre grew a plant for a science experiment. At the end of his

Mathematics

2 answers:

Alex_Xolod [135]3 years ago

7 0

Answer:

100.8÷3.6=28

he grew the plant for 28 days

kotegsom [21]3 years ago

4 0

Answer:

he answer is 140 minutes to plant 14 saplings.

Step-by-step explanation:

30 divided by 3=10

so it takes 10 minutes to plant one sapling.

10x14=140 so this is how you get your answer. im 99% sure

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Answer:

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Step-by-step explanation:

We are given that

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Each hour, temperature falling=2degrees Fahrenheit

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Let x be the time time taken to reach the temperature -19° F

According to question

$-5+x(-2)=-19$

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$-5+19=2x$

$14=2x$

$x=\frac{14}{2}$

$x=7$

Hence, it will take 7 hours for the temperature to reach -19° F.

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