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iren2701 [21]
3 years ago
15

Chris is trimming trees. He can trim 2/3 of a tree in 30 minutes. What is Chris’s rate for trimming trees in trees per hour?

Mathematics
2 answers:
nikitadnepr [17]3 years ago
7 0

Answer:

1/1/3 of a tree

Step-by-step explanation:

30 minutes = 2/3 of a tree

Since 1 hour = 60 minutes,

60 minutes = 2/3 × 2

                   = 4/3

                   = 1/1/3 of a tree

ratelena [41]3 years ago
4 0
  • Speed per 30min=2/3
  • Speed per hour

\\ \rm\Rrightarrow \dfrac{2}{3}\times 2

\\ \rm\Rrightarrow \dfrac{2(2)}{3}

\\ \rm\Rrightarrow \dfrac{4}{3}

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Shtirlitz [24]

Answer:

8 pencils

Step-by-step explanation:

We can reverse everything that is happening in the problem like this!...

Jeremiah has 20 - 4 pencils = 16 than 2 reverse operation of multiplication which will be division then 16 ÷ 2 = 8

Check work? 8 more than 2 times equals 16 + 4 more that Jeremiah has equals 20 pencils

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2 years ago
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Does each function describe exponential growth or decay?
zhannawk [14.2K]

Hey Jinx :)

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Note that a decay has a rate between 0 and 1, and a growth as a rate of 1 or higher.

y = 1/2(1 + 0.03)^t → y = 1/2(1.03)^t (Rate is more then 0) GROWTH

y = 0.3(0.95)^t → (Rate is between 0 and 1) DECAY

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3 years ago
X+4y=6<br> 3x+3y=9<br> Answer is 6.3 but how
maksim [4K]

Answer:

X = 2

Y = 1

Step-by-step explanation:

x + 4y = 6

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3x + 12y = 18

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y = 1

x + 4 * 1 = 6

y = 1

x + 4 = 6

y = 1

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2 years ago
Choose one of the factors of x^3 + 343.
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The quadratic trinomial x^2-7x+49 couldn't be factored anymore, so the expression x^3 + 343 has two factors x+7 and x^2-7x+49.

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