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3 years ago

A store decreases the price of an item from 120$ to 96$ what is the percent decrease

Mathematics

2 answers:

a_sh-v [17]3 years ago

8 0

Answer should be a 20% decrease

Paul [167]3 years ago

6 0

The percent of decrease formula is percent of decrease divided by original value. So the equation would be 24/120, which is 20 percent decrease

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a certain triangle has a perimeter of 3067 mi. the shortest side measures 71 mi less than the middle side and the longest side m

UkoKoshka [18]

Answer:

The measure of the shortest side is 851 miles

Step-by-step explanation:

Let

x ----> the measure of the shortest side

y ---> the measure of the middle side

z ---> the measure of the longest side

we know that

The perimeter of triangle is equal to

$P=x+y+z$

$P=3,067\ mi$

$3,067=x+y+z$ ----> equation A

the shortest side measures 71 mi less than the middle side

$x=y-71$ ----> equation B

the longest side measures 372 mi more the the middle side

$z=y+372$ ----> equation C

substitute equation B and equation C in equation A

$3,067=(y-71)+y+(y+372)$

solve for y

$3,067=3y+301\\3y=2,766\\y=922$

Find the value of x

$x=y-71\\x=922-71\\x=851$

therefore

The measure of the shortest side is 851 miles

6 0

2 years ago

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vova2212 [387]

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Sliva [168]

Answer:

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Step-by-step explanation:

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Zolol [24]

Answer:

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Step-by-step explanation:

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Alexeev081 [22]

Answer:

Step-by-step explanation:

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