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Use the following chart of years and prices to answer the following questions.
1970 1975 1980 1985 1990 1995 2000
$87.32 $119.99 $206.79 $264.16 $283.16 $351.94 $349.69

What was the absolute change from 1970 to 1990?

What was the relative change from 1970 to 1990? (Round the percentage to hundredths.)



What was the absolute change from 1995 to 2000?

What was the relative change from 1995 to 2000? (Round the percentage to hundredths.)

Respuesta :

facundo3141592

Answer:

A) What was the absolute change from 1970 to 1990?

in 1970 we had $87.32

in 1990 we had $283.16

The absolute change is the direct difference:

$283.16 - $87.32 = $195.84

B) What was the relative change from 1970 to 1990?

Now we need to compare this with the initial value:

Relative change = 100%*(final value - initial value)/initial value.

Relative change = 100%*$195.84/$87.32 = 223.93%

C) What was the absolute change from 1995 to 2000?

in 1995 the price was $351.94

in 2000 the price was $349.69

The absolute change is:

$349.69 - $351.94 = -$2.25

The negative sign means the obvious thing, the price decreased.

D) What was the relative change from 1995 to 2000?

Relative change = 100%*(-$2.25)/($351.94) = -0.64%

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