ineedhelp2285
31.08.2019 •
Mathematics
Hj is twice jk. j is between h and k. if hj= 4x and hk=78, find jk.
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Ответ:
HJ = 2JK
HJ + JK = HK
2JK + JK = 78
3JK = 78
JK = 78/3
JK = 26
Ответ:
Teachers already introduce the general concept of revolutions (turns) when they say things like "a full circle is 360°", but they can make the concept more numerically precise by saying "a full turn is 360°, a half turn is 180°, a quarter turn is 90°, and an eighth turn is 45°" or writing "1 rev = 360°, 1/2 rev = 180°, ...
Step-by-step explanation:
hope this help :)
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