quintonps12
09.11.2020 •
Mathematics
4r + 6r - 13 = 7r + 5
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Ответ:
r=6
Step-by-step explanation:
4r + 6r - 13 = 7r + 5
10r - 13 = 7r + 5
10r - 7r - 13 = 5
3r = 5 + 13
3r = 18
r = 6
brainliest pls:)
Ответ:
-7r -7r
3r-13=5
+13 +13
3r=18
/3 /3
r=6
Ответ:
The best estimate is 13.
We can find the average of the data by adding every given number up, which comes to 77.5. Then we should divide by 6, which is the total amount of numbers we added to get 77.5.
77.5/6 = 12.9166
12.9166 should be rounded up to 13.