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expeople1 [14]
3 years ago
9

On Thursday after work, the number of cars in a parking lot decreased at a steady rate of 13 cars every 2 minutes. Which rationa

l number describes the number of cars per minute?
Mathematics
2 answers:
Whitepunk [10]3 years ago
8 0
Find the unit rate: 13/2 = 6.5 cars/min
KatRina [158]3 years ago
7 0

Answer:

Required ration which represent the situation = \frac{-13}{2}

Step-by-step explanation:

Given: Cars in parking lot decreases at rate of 13 cars every 2 minutes.

To find: Rational Number which represent given information

Rational Number is a number in form of  \frac{p}{q} where p be any integer and q is non zero integer.

So from given information

No of cars decreases in 2 minutes = 13 cars

So, No of cars decreases in 1 minute = \frac{13}{2}

Therefore rate at which cars decreasing in parking lot is  \frac{13}{2}  cars/min.

Since it is decreasing, ration which represent it must be equal to \frac{-13}{2}

Therefore, Required ration which represent the situation = \frac{-13}{2}

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Karen, James, Frank, and Dan were left an inheritance by their late grandfather. If Karen receives one-eighth of the inheritance
pashok25 [27]

Count what fraction receive Karen, James and Frank in total:

since

Karen receives - \frac{1}{8},

James receives - \frac{1}{4}=\frac{2}{8},

Frank receives - \frac{3}{8},

then \frac{1}{8} +\frac{2}{8} +\frac{3}{8} =\frac{1+2+3}{8}=\frac{6}{8} =\frac{2\cdot 3}{2\cdot 4} =\frac{3}{4}.

All inheritance is the whole 1, then for Dan remains 1-\frac{3}{4} =\frac{4}{4} -\frac{3}{4} =\frac{4-3}{4} =\frac{1}{4}.

Answer: Dan receives one quarter of the inheritance.

4 0
2 years ago
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In how many ways can a president and a vice president be randomly selected from a class of 20 students?
SpyIntel [72]

Answer:

n how many ways can a president, vice president, and a secretary be chosen? It is 12X11X10. Permutation of n things taken r at a time: nPr=n!/(n-r)! 12P3=12*11*10*9!/9!= 12*11*10=1320 ways.

Step-by-step explanation:

7 0
3 years ago
Hey do y’all know how to solve this?:(
umka2103 [35]

Answer:

27 m

Step-by-step explanation:

We know that ABC = 42 degrees

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3 years ago
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The area of a rectangle is 77ft, and the length of the rectangle is 3 more than twice the width. Find the dimensions of the rect
Alexeev081 [22]

Answer:

W = 11/2, L = 14 sq ft

Step-by-step explanation:

Area = 77ft

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3 years ago
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Anika [276]

Answer:

w² - 2w + 4

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