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maw [93]
3 years ago
11

Mr. Burke had 40 pencil. He gave his class 1/5 of the pencils.Then he packed away 1/4 of the pencils that reminded. All the othe

r pencil were faulty,so he threw them away. How many pencils were thrown away
Please help me
Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
8 0

Answer:

26 pencils were thrown away.

Step-by-step explanation:

1/5 = 8/40

1/4 = 6/32

add them together 18/40

26 were thrown out

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A book club has 200 members
nikklg [1K]
So these are decmials of the accutal total so

.32=32%
what makes this question easy is that there are 200 members so to convert the percents into accutall numbers so like .32=32%=64 people (since 200 is 2 times of 100)

A. fiction of 31-40 compared to 21-30
fiction 31-40=.38=38%=76 readers
fiction 21-30=.32=32%=64 readers
76-64=12
A is FALSE

B. so we want to know how many people are 31-40 and prefer fiction
so .38=38% and 38% of 200=76
B is FALSE

C 43 members are 21-30
so we look at the total row for the 21-30 people and see that .43 or 43% or 86 people are in the 21-30 age group
C is FALSE

D. 140 members prefer fiction
look at the total column for fiction and see that .70 like fiction .70=70%=140 people
D is TRUE

so A,B,C are FALSE
D is TRUE
7 0
3 years ago
Find all the zeros of the quadratic function.
earnstyle [38]
Answer x=-2,-6

The roots (zeros) are the
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4 0
3 years ago
My question is what's <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%7D%7B5%7D%20%20%3D%20%20%5Cfrac%7B2%7D%7B2.5%7D%20
Reptile [31]
Hi, I'd be glad to help you with this equation. 

The answer is (x = 4) 

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6 0
4 years ago
Write and solve an equation to find the variable.
Svetradugi [14.3K]

Answer:

see explanation

Step-by-step explanation:

The mean of a set of data is calculated using

mean = \frac{totalscore}{count}, that is

\frac{5.2+8.3+8.5+7.7+7.8+y}{6} = 7.1

37.5 + y = 7.1 ( multiply both sides by 6 )

37.5 + y = 42.6 ( subtract 37.5 from both sides )

y = 5.1

8 0
3 years ago
HELP ASSAP WITH THIS QUESTION
leonid [27]
-3/5x+y=-8/5 but you have to change all the signs bc an standard formula needs to have a positive x so it would be: 3/5x-y=8/5
8 0
3 years ago
Read 2 more answers
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