four fifths of a number is more than three fourth of a number by four

Question

four fifths of a number is more than three fourth of a number by four​

Sarah · Answer

15  ✨✨ ___✨✨              11     Step-by-step explanation:     (let the number be x)      4                                         3  ___ Th of x is more than __     5                                        4               x  Th of __ .             4         4         3       x  __ x = __ + __   5         4      4      4x        3+x  __  = ____   5           4          (by doing cross multiplication)     4x × 4 = 5 (3+x)    16x = 15+5x    16x-5x = 15    11x=15           15   x = __ ✔️✔️✔️         11

15

✨✨ ___✨✨

11

4 3

_ Th of x is more than

5 4

x

Th of __ .

4

4 3 x

x = + __

5 4 4

4x 3+x

= __

5 4

4x × 4 = 5 (3+x)

16x = 15+5x

16x-5x = 15

11x=15

15

x = __ ✔️✔️✔️

11

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Isabelle

3°
(iii)
(ii)
36×42 x 64×6
-2
5-7
1
(iii)
(ii)
Х
53
56
3 x (
(11-

Pythagoras theorem relates the length of the side in a ___________.
1 point
Obtuse triangle
Equilateral Triangle

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