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orangeicecream
29.05.2021 •
Mathematics
In a 3-digit number, the hundreds digit is one more than the ones digit and the tens digit is twice the hundreds digit. If the sum of the digits is 11, find the number. Plz give equation and answer.
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Ответ:
362
Step-by-step explanation:
Let the ones digit equal x. If the ones digit is one, then the hundreds digit is one more than it or x + 1. And, since the tens digit is twice the hundreds digit, you can say it is 2(x + 1) or as simplified: 2x + 2. Now, we are given the sum of the digits is 11, so if we add all of them, they should be equal to 11:
x + x + 1 + 2x + 2 = 11
We can combine like terms:
4x + 3 = 11
4x = 8
x = 2
So, the ones digit is 2. Since the hundreds digit is one more, it's 3. And because the tens is twice the hundreds, it's 6. The number is 362.
Ответ:
362
Step-by-step explanation:
Hundreds:x
Tens:2x
Ones:x-1
x+2x+x-1=11=equation
3x-1=11
3x=12
x=4-1
x=3
Ответ:
Discount = 35% x $72
Discount = 0.35 x 72
Discount = $25.20
Sale Price = $72 - $25.20
Sale Price = $46.80
The Sale Price is $46.80.