By definition we have to:
The percentage is a mathematical symbol, which represents a given quantity as a fraction in 100 equal parts. It is also commonly called percent where percent means "out of every hundred units."
We have then that using the definition we can apply the following formula to obtain a fraction or a decimal:
Where,
A: amount in percentage
Answer:
you can write fraction and decimals equivalents using the expression:
Answer:
40%
Step-by-step explanation:
Original price = x
Sale = 20% off
20% / 100 = 0.2 to convert from a percent to a decimal
Sale = x - 20% of x = x - 0.2x = 0.8x
Sale price = y = 0.8x
Reduction of sale prices = 25% = 0.25
Reduction = y - 25% of y = y - 0.25y = 0.75y
End price in terms of original price (x):
0.75y = 0.75(0.8)x
= 0.6x
End price = 0.6 or 60% of original price, coming out to a 100-60 = 40% overall percentage reduction
Distance = Square Root ((X2 - X1)^2<span> + (Y2 - Y1)^</span>2<span>)
</span>Distance = Square Root [ (11 --13)^2 + (2 -9)^2 ]Distance = Square Root [ 24^2 + -7^2 ]Distance = Square Root [ 576 + 49 ]Distance = Square Root [ 625 ]Distance = 25
Source:http://www.1728.org/distance.htm
9514 1404 393
Answer:
c.) 57 cm
Step-by-step explanation:
The centroid divides the median into parts with a 2:1 ratio.
OM : OP = 2 : 1
OM : MP = 2 : (2+1) = 2 : 3
As a fraction with MP on top, this is ...
MP/OM = 3/2
MP = (3/2)OM = 3/2×(38 cm)
MP = 57 cm
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<em>Comment on the answer choices</em>
Often, you can eliminate a number of the choices in a multiple-choice question just by testing whether they are reasonable. Here, the longer part of a line segment has length 38, so the whole segment will not be shorter than that. The choices 19 and 25.5 make no sense.
The remaining choices are 114 cm and 57 cm. The former is 3 times the length of the given segment, which the drawing tells us is unreasonable.
The only reasonable choice offered is 57 cm.
