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gayaneshka [121]
3 years ago
9

Which expression best estimates

Mathematics
2 answers:
kati45 [8]3 years ago
6 0
Hey there! :D

6 3/4 - 1 2/3

We can convert the fractions to decimals, and if the decimals are bigger than .5, we can round up to the nearest whole number.

3/4= .75 <== we can round up to the nearest whole number 

6.75= 7

2/3= .66666 <=== we would also round this up to the nearest whole number

1.66666= 2

7-2 <=== estimated expression

I hope this helps!
~kaikers

beks73 [17]3 years ago
5 0
<u>
7-2 </u>
is the correct answer because 6 3/4 can be rounded to 7 and 1 2/3 can be rounded to 2

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Part two out of six plz
podryga [215]
Factors of 24:
1,2,3,4,6,8,12,24

factors of 84:
1,2,3,4,6,7,12,14,21,28,42

highest common factor of 24 and 84:
12

Hope this helps!
6 0
3 years ago
Percy bought an encyclopedia pried at $13.85 shipping and handing cost an additional 20 percent of the price
ipn [44]

Answer:

Percy spent $2.77 for shipping and handling.

Step-by-step explanation:

2.77 is 20 percent of 13.85

6 0
3 years ago
The ratio of boys to girls in Mrs. Ronilo's math class is 3 to 1. What PERCENT of the class is girls? A) 25% B) 33% C) 66% D) 75
Anna35 [415]
The answer is A) 25% since 3 plus 1 is 4 and then divide 100 by 4 which is 25
8 0
3 years ago
Read 2 more answers
A random sample of students were chosen from all of 7th grade. There were 3 boys and 5 girls in that sample. If there are a tota
Sauron [17]

Answer:

90

Step-by-step explanation:

3 boys

5 girls,

Say that there where "x" number of groups like this, (x will be the total number of groups like this, if one were to divide the population by the number of groups, they would the number of students);

Set up an equation;

x ( 3 + 5 ) = 240

Combine like terms and distribute;

8x = 240

Inverse operations;

8x = 240

/8        /8

x = 30

Substitute back in to find the number of boys;

30 * 3 = 90

3 0
3 years ago
What is the inverse of f(x)=3x+6 ?
scZoUnD [109]

Answer:

\boxed{\sf \ \ f^{-1}(x)=\dfrac{x-6}{3} \ \ }

Step-by-step explanation:

hello,

we can write

fof^{-1}(x)=x \ and \ fof^{-1}(x)=f(f^{-1}(x))=3f^{-1}(x)+6 \ so\\3f^{-1}(x)+6=x \ \ subtract \ 6\\3f^{-1}(x)=x-6 \ \ divide \ \ by \ \ 3\\ f^{-1}(x)=\dfrac{x-6}{3}

hope this helps

3 0
3 years ago
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