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fatty18
11.10.2019 •
Mathematics
Solve 80/100 = 68/n using cross multiplication.
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Ответ:
4/5 = 68/n
4/5n = 68
4n/5 = 68
4n = 68 * 5
4n = 340
n = 340/4
n = 85.
Ответ:
39z + 17z + 15z +11z+ 43z + 5z=130z