thatonestudent2271
04.09.2020 •
Mathematics
If r + t = 10 and -r + t = 4, What is the value of 5r + 8t?
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Ответ:
71
Step-by-step explanation:
Start solving using simultaneous equation,From there, we have r to be 3 and t to be 7
Ответ:
the answer is 64 in squared