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mash [69]
3 years ago
14

........................

Mathematics
1 answer:
kolbaska11 [484]3 years ago
6 0

you need help with sum

.........................

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56 books; 75% decrease
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Answer:

14

Step-by-step explanation: Multiply 56 by 75% then subtract your product from 56

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The school sold 300 tickets to the theatre performance. They sold adult tickets for $9 each and student tickets for $6 each. The
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Mark it as brainlist answer . follow me for more answer.

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3 years ago
A drug is eliminated from the body through urine. Suppose that for a dose of 10 milligrams, the amount A(t) remaining in the bod
adell [148]

Answer: a - 4.512 hours

b - 1.94 hours

Step-by-step explanation:

Given,

a) A(t) = 10 (0.7)^t

To determine when 2mg is left in the body

We would have,

A(t) = 2, therefore

2 = 10(0.7)^t

0.7^t =2÷10

0.7^t = 0.2

Take the log of both sides,

Log (0.7)^t = log 0.2

t log 0.7 = log 0.2

t = log 0.2/ 0.7

t = 4.512 hours

Thus it will take 4.512 hours for 2mg to be left in the body.

b) Half life

Let A(t) = 1/2 A(0)

Thus,

1/2 A(0) = A(0)0.7^t

Divide both sides by A(0)

1/2 = 0.7^t

0.7^t = 0.5

Take log of both sides

Log 0.7^t = log 0.5

t log 0.7 = log 0.5

t = log 0.5/log 0.7

t = 1.94 hours

Therefore, the half life of the drug is 1.94 hours

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3 years ago
Write the expression<br> as a<br> single natural logarithm.<br> 3 In 5
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Whould you like to cash app flip turn 10 into 100
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Dan has 18 chocolates. Lee has 14 chocolates. How many fewer<br> chocolates does Lee have?
artcher [175]

Answer:

4 Fewer Chocolates

Step-by-step explanation:

18-14=4

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