IDNStudy.com, ang perpektong platform para magtanong at makakuha ng maaasahang mga sagot. Makakuha ng mga kumpletong sagot sa lahat ng iyong mga tanong mula sa aming network ng mga eksperto.

Anna baked some muffins. Her kids ate 1/10 of them and gave 2/3 of the remaining muffins to her nieces. If she had 9 muffins left, how many muffins did
she bake?


Sagot :

Total muffins: x
Muffins kids ate: (1/10)(x)
Muffins given to nieces: (2/3) (9/10)(x) or (3/5) (x)
Muffins left:  9 muffins

Equation:
x - (x/10 + 3x/5) = 9
x - (x/10 + 6x/10) = 9
x - (7x/10) = 9
(10) (x) - 7x = 9 (10)
10x - 7x = 90
3x = 90
3x/3 = 90/3
x = 30

ANSWER: She baked 30 muffins.

Check:
Total muffins: x = 30 muffins
Muffins kids ate: (1/10) (30) = 3 muffins
Muffins given to nieces: (2/3) (27) = 18 muffins
Muffins left = 9 muffins

3 + 18 + 9 = 30
30 = 30