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smartie80
27.01.2021 •
Mathematics
An electrician has 3 7/10 cm of wire. He needs only 2 5/8 cm of wire for a job. How much wire does he need to cut?
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Ответ:
The answer can either be 2 5/8 cm in terms of grammar but because it is a mathematics question you will have to subtract the fractions giving us 1 3/40 cm
Step-by-step explanation:
3 7/10 - 2 5/8
subtract the whole numbers and find the LCM of the fractions which is 40
=1 (( 28-25)/40)
=1 3/40cm
Ответ:
2. false - compare to 3.
3. TRUE - compare to 4.
4. TRUE - the sum of exernal angles of any convex polygon is 360°
5. false - compare to 4.
6. false - compare to 7.
7. TRUE - the angles are supplementary
8. false - compare to 4.
The true statements are 1, 3, 4, 7.