3 years ago

The area of a wetland drops by 1/4 every 8 years. What percent of its total area disappears after 40 years?

Mathematics

1 answer:

valentina_108 [34]3 years ago

8 0

40÷8=5
5 × 0.25
= 1 1/2 % lost

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Answer:

B. $39550

Step-by-step explanation:

The expression for the function is not well-formatted, find the correct format in the solution bellow

Step one:

given data

We are told that the function of the cost is

$C(t) = 0.04t^3- 0.1t^2 + 5.5t$

instantaneous rate c(t) is the value obtained when we plug in 100 for t in the function above

substituting we have

$C(t) = 0.04(100)^3- 0.1(100)^2 + 5.5(100)\\\\\C(t) = 0.04*1000000- 0.1*10000 + 5.5*100\\\\C(t) = 40000-1000+550\\\\C(t) = 39550$

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2 years ago

What is -6x+4=-50 and 5x+6=-44 also -3(7+6x)=-201 please solve these equations and show work

grandymaker [24]

Remember you can do anyting to an equation as long as ou do it to both sides

-6x+4=-50
minus 4 both sides
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5x+6=-44
minus 6 both sides
5x=-50
divide both sides by 5
x=-10

-3(7+6x)=-201
normally you would distribute (that works) but it's easier to divide both sides by -3
7+6x=67
minus 7 both sides
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3 years ago

What is 4% of the number 250

Alik [6]

The answer should be 10 I think, because if u multiply 250 * 4% u get 10.

Hope I'm right.

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3 years ago

Read 2 more answers

An electrician charges $40 to come to your house. She also charges $55 for each hour that she works. The electrician charges you

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The answer for this problem is two remainder seven

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