MATHEMATICS MIDDLE SCHOOL

Can someone identify this shapes have no clue what these are
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Answers

Answer 1
Answer: Do you have answer choices? I know A is an octagon
Answer 2
Answer: E is a rectangle the others could be irruglur shapes

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382 3/10 - 191 87/100=math difficulties please answer this question

Answers

382(3)/(10)-191(87)/(100)=\ \ \ | make\ a\ common\ denominator\n\n382(30)/(100)-191(87)/(100)=\n\n381(130)/(100)-191(87)/(100)=190(130-87)/(100)=190(43)/(100)\n\nSolution\ is\ 190,43.
first you need to find a common denominator , which is 100 . so multiply 3/10 by 10 with both the numerator and denominator. So your new equation should be 382 30/100 - 191 87/100. Even though 382 is larger than 191 , 3/100 is still less than 87/100. So what i do is cross out the first/whole number and then add the denominator. so i change it to look like this....

381 130/100 - 191 87/100

this way its still the same fraction but it will be easier to subtract

so first subtract 381 and 191 which equals 190
then subtract the fractions 130/100 - 87/100 which equals 47/100

so your final answer is 190 47/100

Simplify the expressions:

3x-1/3x+1

Answers