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Earn +20 ptsQ: What number increased by -10 is 5?
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What number when increased by 1 and doubled and then increased by 5 has a result that is the same as when the number is increased by 1?
let x be the number, then: (x + 1) × 2 + 5 = x + 1 → 2x + 2 + 5 = x + 1 → 2x + 7 = x + 1 → 2x - x = 1 - 7 → x = -6 The number is -6. Checking: -6 +1 = -5; 5 × 2 = -10; -10 + 5 = -5 which is the same as -6 + 1 = -5.
23 increased by twice a number is 5. Find the number?
23 + 2X = 5 2X = -18 X = -9
What is a number increased by 10?
Let x = the numbernumber increased by 10 = x + 10
What number which best completes the sequence below 2 9 5 13 10 19 17?
2 -> 9 = +79 -> 5 = -45 ->13 = +813 -> 10 = -310 -> 19 = +919 -> 17 = -2As you can see, every other time, the number is increased. It was originally increased by 7, then 8, then 9. So, the next number should be increased by 10 = 27
What new number will be formed if the 10000 digit of the number 52398 is increased by 3 and the 10 digit is deacreasedby 5?
It will be 22348.
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