Pinadadali ng Imhr.ca ang paghahanap ng mga solusyon sa mga pang-araw-araw at masalimuot na katanungan. Tuklasin ang malalim na mga sagot sa iyong mga tanong mula sa isang malawak na network ng mga eksperto sa aming madaling gamitin na Q&A platform. Tuklasin ang malalim na mga sagot sa iyong mga tanong mula sa isang malawak na network ng mga eksperto sa aming madaling gamitin na Q&A platform.
Sagot :
Original number sum of digits twice the orig#+7 reversed
29 11 65 ≠ 92
38 11 83 = 83
38 is my final answer
29 11 65 ≠ 92
38 11 83 = 83
38 is my final answer
let 'x' be at the tens place of the two-digit number
'y' be at the ones place of the two-digit number
then the number would be x(10) + y
why i multiply x by 10? it's in the tens place remember? then the value would be multiplied by 10
since the sum of the two is 11 then you'll have it as:
x + y = 11 ---equation 1
for the second statement you'll have the equivalent mathematical statement as:
y(10) + x = 2(x(10) + y) + 7
10y + x = 20x + 2y + 7
10y - 2y = 20x - x + 7
8y = 19x + 7 ----equation 2
rearranging equation 1 you'll have
x + y =11
y = 11 - x ---equation 3
substitute equation 3 to equation 2
8y = 19x + 7
8(11-x) = 19x + 7
88 - 8x = 19x +7
19x + 8x = 88 - 7
27x = 81
x = 3
substituting the value of x to equation 3 you'll have
y = 11 - x
y = 11 - 3
y = 8
the original number is defined by 10x + y as stated above then you'll have it as:
10x + y = 10(3) + 8
= 38
therefore the original number is 38
'y' be at the ones place of the two-digit number
then the number would be x(10) + y
why i multiply x by 10? it's in the tens place remember? then the value would be multiplied by 10
since the sum of the two is 11 then you'll have it as:
x + y = 11 ---equation 1
for the second statement you'll have the equivalent mathematical statement as:
y(10) + x = 2(x(10) + y) + 7
10y + x = 20x + 2y + 7
10y - 2y = 20x - x + 7
8y = 19x + 7 ----equation 2
rearranging equation 1 you'll have
x + y =11
y = 11 - x ---equation 3
substitute equation 3 to equation 2
8y = 19x + 7
8(11-x) = 19x + 7
88 - 8x = 19x +7
19x + 8x = 88 - 7
27x = 81
x = 3
substituting the value of x to equation 3 you'll have
y = 11 - x
y = 11 - 3
y = 8
the original number is defined by 10x + y as stated above then you'll have it as:
10x + y = 10(3) + 8
= 38
therefore the original number is 38
Salamat sa iyong pagbisita. Kami ay nakatuon sa pagtulong sa iyong makahanap ng impormasyon na kailangan mo, anumang oras na kailangan mo ito. Salamat sa pagpili sa aming plataporma. Kami ay nakatuon sa pagbibigay ng pinakamahusay na mga sagot para sa lahat ng iyong mga katanungan. Bisitahin muli kami. Bisitahin muli ang Imhr.ca para sa pinakabagong sagot at impormasyon mula sa aming mga eksperto.