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WINSTONCH [101]

3 years ago

15

the ratio of blue marbles to white marbles and summer bag is equal to 1 to 2 if there are 20 blue marbles how many white marbles

are there

2 answers:

iragen [17]3 years ago

8 0

Answer:

It’s 30 marbles

Step-by-step explanation:

Svet_ta [14]3 years ago

6 0

The answer is 30 marbles

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The value, V (t), in dollars, of a stock t months after it is purchased is modeled by the following equation.

11Alexandr11 [23.1K]

Answer:

Step-by-step explanation: $V(t)= 42(1-e ^{1.5t} ) +36$ is given value in dollars of a stock in t months after it is purchased.

a) Substitute 1 for t

$V(1) = 42(1-e^{-1.5} )+36 \\=67.852\\=67.85$

V(12) = $V(1) = 42(1-e^{-1.5*12} )+36 \\=77.00$

b) Find derivative for V

$V'(t) = 42(-1.5) e^{-1.5t} )\\\\=-63e^{-1.5t}$

c) When V(t) = 75

$V(t)=75= 42(1-e ^{1.5t} ) +36\\1-e ^{1.5t=0.9286\\=-2.639$

d) As t tends to infinity, exponent being in negative t tends to 0

So V tends to 42(1-0)+36 = 78

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aksik [14]

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