kingoftime
04.06.2020 •
Mathematics
Can you make 142? Numbers given: 2,9,1,7,2,7,5 Using any combination the numbers above and any operations, get the total to be 142. You need to give me at least 4 different ways. You also need to show me how you know your answer is correct. Only one answer can only use two steps, all the rest must have at least three steps. You have to attempt more than just one operation.
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Ответ:
1) 2 × 2 × 5 × 7 + 9 -7×1 = 142
2) 9 × 7 × 2 + 5 × 2 + 7 - 1 = 142
3) 2 × 9² - 7 - 7 - 5 - 1 = 142
4) 2 × 7² + 9 + 7 × 5 × 1 = 142
Step-by-step explanation:
1) 2 × 2 × 5 × 7 + 9 -7×1 = 142
Multiply 2 by 2 by 5 by 7 add to 9 then subtract 7 multiplied by 1
2) 9 × 7 × 2 + 5 × 2 + 7 - 1 = 142
Multiply 9 by 7 by 2 by 7 add to 5 multiplied by 2 then add to 7 and subtract 1
3) 2 × 9² - 7 - 7 - 5 - 1 = 2 × 9² - (7 + 7 + 5 + 1) = 142
Multiply 2 by 9 raised to the power of 2 then subtract the sum of 7, 7, 5 and 1
4) 2 × 7² + 9 + 7 × 5 × 1 = 142
Multiply 2 by 7 raised to the power of 2 then add 9 and add 7 multiplied by 5 multiplied by 1.
Ответ:
6 - 6(b +p) = b
Step-by-step explanation: