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Sergio [31]
3 years ago
9

When adding or subtracting to decimals what is the first thing you must do

Mathematics
1 answer:
Svetach [21]3 years ago
3 0
Line up the decimals 
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Find the percent of change from the first value to the second. 20 ; 80
Lemur [1.5K]

Answer:

Percent Change Formula: [(new - old)/old] * 100

Step-by-step explanation:

New - old

80 - 20 = 60

Difference between new - old divided by old

60/20 = 3

Previous quotient times 100

3*100 = 300

Percent Change is 300%

Check your answer

300% of 20 is 60

20 + 60 = 80

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2 years ago
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the answer is 3 seconds

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Perform the indicated operation. 5 2/3 ÷ 2 1/8
bezimeni [28]

5 2/3 ÷ 2 1/8 = 17/3 ÷ 17/8 = 17/3 x 8/17 = 8/3 = 2 2/3

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2 years ago
Zoey and her children went into a grocery store where they sell apples for $2.25 each and bananas for $1.50 each. Zoey has $15 t
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Answer:

Zoey could buy 2 apples and 7 bananas.

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Since the point (2, 7(2,7) is inside the double shaded region, one possible solution to the system of inequalities would be:

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2 years ago
Distiance between (-8,-2) and (6,-1) as a radical (square<br> root).
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~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-8}~,~\stackrel{y_1}{-2})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{-1})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{(~~6 - (-8)~~)^2 + (~~-1 - (-2)~~)^2} \implies d=\sqrt{(6 +8)^2 + (-1 +2)^2} \\\\\\ d=\sqrt{( 14 )^2 + ( 1 )^2} \implies d=\sqrt{ 196 + 1 } \implies d=\sqrt{ 197 }

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1 year ago
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