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Mathematics 7 Online
OpenStudy (anonymous):

anybody i will give a metal to anybody that helps me plze

OpenStudy (ellamallow):

Help you with what...?

OpenStudy (anonymous):

Which of the following numbers can be expressed as repeating decimals? 3 over 7, 2 over 5, 3 over 4, 2 over 9 2 over 9 and 3 over 4 3 over 7 and 2 over 5 2 over 5 and 3 over 4 3 over 7 and 2 over 9

Vocaloid (vocaloid):

well, let's start by converting each one to a decimal 3 over 7 = 3/7 = ?

OpenStudy (anonymous):

2

Vocaloid (vocaloid):

nope... try one more time 3 divided by 7 = ? use a calculator if you are unsure.

OpenStudy (anonymous):

0.42

Vocaloid (vocaloid):

not quite, but we're getting closer 3/7 = 0.428571428571.... repeating forever, so we call this a repeating decimal

Vocaloid (vocaloid):

now, 2/5 = ?

OpenStudy (anonymous):

wait i thot that a repeating decimal is the same number after the decimal that repeates

OpenStudy (anonymous):

2/5 and wat

Vocaloid (vocaloid):

yes, but it doesn't have to be just one number, it can be a sequence of numbers

Vocaloid (vocaloid):

2/5 = 2 divided by 5 = ?

OpenStudy (anonymous):

i mean the answer

Vocaloid (vocaloid):

we'll find the answer in a minute... 2 divided by 5 = ? use a calculator if you are unsure...

OpenStudy (anonymous):

0.4

Vocaloid (vocaloid):

right, and 0.4 is NOT a repeating decimal. now let's move to the next one: 3/4 = ?

OpenStudy (anonymous):

wait can i call u

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