IDNStudy.com, ang iyong gabay para sa mga sagot ng eksperto. Makakuha ng mga sagot sa iyong mga tanong mula sa aming mga eksperto, handang magbigay ng mabilis at tiyak na solusyon.
Sagot :
Let 'x' be the number on the tens place
'y' be the number on the units place
'x(10)+y' be the number
----------------------------------------------------
From the statement 'the sum of a two-digit number is 12'
x + y = 12 ----equation 1
----------------------------------------------------
From the statement 'the value of the number is two more than 11 times the tens digit'
x(10) + y = 11x + 2
10x + y = 11x + 2
11x - 10x = y - 2
x = y -2 -----equation 2
----------------------------------------------------
Substitute equation 2 to equation 1
x + y = 12
y - 2 + y = 12
y+ y = 12 + 2
2y = 14
y = 7
----------------------------------------------------
Substitute y=7 to equation 1
x + y = 12
x + 7 = 12
x = 12 - 7
x = 5
---------------------------------------------------
The number as stated above is x(10) + y
10x + y = 10(5) + 7
= 50 + 7
= 57
---------------------------------------------------
Therefore the number is 57.
'y' be the number on the units place
'x(10)+y' be the number
----------------------------------------------------
From the statement 'the sum of a two-digit number is 12'
x + y = 12 ----equation 1
----------------------------------------------------
From the statement 'the value of the number is two more than 11 times the tens digit'
x(10) + y = 11x + 2
10x + y = 11x + 2
11x - 10x = y - 2
x = y -2 -----equation 2
----------------------------------------------------
Substitute equation 2 to equation 1
x + y = 12
y - 2 + y = 12
y+ y = 12 + 2
2y = 14
y = 7
----------------------------------------------------
Substitute y=7 to equation 1
x + y = 12
x + 7 = 12
x = 12 - 7
x = 5
---------------------------------------------------
The number as stated above is x(10) + y
10x + y = 10(5) + 7
= 50 + 7
= 57
---------------------------------------------------
Therefore the number is 57.
Ang iyong presensya ay mahalaga sa amin. Magpatuloy sa pagtatanong at pagbahagi ng iyong nalalaman. Sama-sama tayong magtutulungan upang makamit ang mas mataas na antas ng karunungan. Para sa mabilis at maasahang mga sagot, bisitahin ang IDNStudy.com. Nandito kami upang tumulong sa iyo.