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Elis [28]
3 years ago
9

Over the last three evenings Lucy received a total of 122 phone calls at the call center. The first evening she received 10 fewe

r calls than the third evening. The second evening she received 4 times as many calls as the third evening. How many phone calls did she receive each evening?
Mathematics
1 answer:
Zanzabum3 years ago
4 0

Answer:

<em>SOLUTION: Over the last three evenings, Heather received a total of 109 phone calls at the call center. The third evening, she received 4 times as many calls as the second evening</em>

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A prime number less than 100 is selected randomly. what is the probability that its square has units digit $7$?
liberstina [14]
Any number ends with 0, 1, 2, 3, 4, 5, 6, 7, 8 or  9

Given any number. The square of this number is the last digit of square of the original numbers units digit.

For example

23*23 ends with 9 (3*3=9)

149*149 ends with 1 (9*9=81)

2564*2564 ends with 6 (4*4=16) 

and so on

so all the possible unit digits of a square number are {0, 1, 4, 5, 6, 9}

because:

0*0= 0 ; 1*1=1; 2*2=4; 3*3=9; 4*4=16; 5*5=25, 6*6=36; 7*7=49; 8*8=64, 9*9=81

Thus, the probability that the square of a number selected from any set of numbers being 7, is 0.


Answer: 0
 

4 0
3 years ago
a long year-end status report for work is 134 pages long. you need to print 13 copies for a meeting next week. How much is the p
NNADVOKAT [17]

one paper sheet = 500 / 305 cents

134 * 13 = 1742

500 / 305 = 1.64 cents

1.64 * 1742 = $28.55

3 0
2 years ago
2/3 (6a+9)<br><br> plsss i need it asap
Alexus [3.1K]

Answer:

4a +6

Step-by-step explanation:

Simplify the expression

Hope it helps! :)

Please mark me brainliest

3 0
2 years ago
Read 2 more answers
Please answer as soon as possible
alekssr [168]

Answer:8^1/6*2^x=32^1/2

We move all terms to the left:

8^1/6*2^x-(32^1/2)=0

Domain of the equation: 6*2^x!=0

x!=0/1

x!=0

x∈R

We get rid of parentheses

8^1/6*2^x-32^1/2=0

We calculate fractions

There is no solution for this equation

   

4 0
3 years ago
A researcher surveyed people as they left a museum, asking whether they visited the gift shop and whether they watched the film
BARSIC [14]
Hey there!


P(y) = 0.46

P(x) = 0.49

P(y') = 0.54

P(x') = 0.51

P(y and x') = 0

x = person that watched the film

y = person that visited the gift shop


 P(y and x') / P(x')

0.1 / 0.51 = 0.196 

Now convert that into a percentage!

0.196 = 19.6%

Your answer is 19.6%


Hope I helped!

Let me know if you need anything else!

~ Zoe

5 0
3 years ago
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