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maksim [4K]
2 years ago
12

4(-2d-3)=12, someone please solve this for me asap

Mathematics
1 answer:
wlad13 [49]2 years ago
5 0

4(-3 + -2d) = 12

(-3 * 4 + -2d * 4) = 12

(-12 + -8d) = 12

-12 + -8d = 12

-12 + 12 + -8d = 12 + 12

-12 + 12 = 0

0 + -8d = 12 + 12

-8d = 12 + 12

12 + 12 = 24

-8d = 24

d = -3

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On the first day of spring and entire field of flowering trees blossom.The locus population Gaines 87% of its size every 2.4 day
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Answer:

L(t) = 1100(1.87)^(t/2.4)

Corrected question;

On the first day of spring, an entire field of flowering trees blossoms. The population of locusts consuming these flowers rapidly increases as the trees blossom. The locust population gains 0.87 of its size every 2.4 days, and can be modeled by a function, L, which depends on the amount of time, t (in days). Before the first day of spring, there were 1100 locusts in the population. Write a function that models the locust population t days since the first day of spring.

Step-by-step explanation:

Given;

Initial amount P = 1100

Rate of growth r = 87% = 0.87

Time step k = 2.4 days

The case above can be represented by an exponential function;

L(t) = P(1+r)^(t/k)

Where;

L(t) = locust population at time t days after the first day of spring

P = initial locust population

r = rate of increase

t = time in days

k = time step

Substituting the given values;

L(t) = 1100(1+0.87)^(t/2.4)

L(t) = 1100(1.87)^(t/2.4)

the locust population t days since the first day of spring can be modelled using the equation;

L(t) = 1100(1.87)^(t/2.4)

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3 years ago
A shirt with marked price Rs 1000 was sold to a customer for Rs 900. find the percentage of decrease
snow_tiger [21]

Answer:

10%

Step-by-step explanation:

Marked price of the shirt = Rs 1000

Sale price = Rs 900

Decease = (1000 - 900) Rs

= Rs 100

% decrease = decrease /marked price x 100%

That’s 100/1000 x 100%

0.1 x 100

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3 years ago
What is 20 divided by 2
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Answer:

10

Step-by-step explanation:

10 x 2 = 20

10 = 20 / 2

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pickupchik [31]

Answer:

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Answer:

5 and 2/5 liters     or          5.4 liters

Step-by-step explanation:

9/10 times 6

9 times 6 is 54. 54 divided by 10 is 5.4 which is the same as 5 and 2/5

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