x : 3/4 = 9/5 – 1/3 9/5 – y = 5/7 y : 2/3 = 7/4 -5/6 help meeeee 23/09/2021 Bởi Natalia x : 3/4 = 9/5 – 1/3 9/5 – y = 5/7 y : 2/3 = 7/4 -5/6 help meeeee
1) x : 3/4 = 9/5 – 1/3 X x 4/3 = 27/15 – 5/15 X x 4/3 = 22/15 X = 22/15 : 4/3 X = 22/15 x 3/4 X = 1,1 2) 9/5 – y = 5/7 y = 9/5 – 5/7 y = 63/35 – 25/35 y = 38/35 3) y : 2/3 = 7/4 -5/6 y : 2/3 = 21/12 – 10/12 y : 2/3 = 11/12 y = 11/12 x 2/3 y ≈ 0.61 Bình luận
Đáp án: Giải thích các bước giải: x : 3/4 = 9/5 – 1/3 x : 3/4 = 27/15 – 5/15 x : 3/4 = 22/15 x = 22/15 x 3/4 x = 11/10 Vậy x = 11/10 9/5 – y = 5/7 y = 9/5 – 5/7 y = 63/35 – 25/35 y= 38/35 Vậy y = 38/35 y : 2/3 = 7/4 – 5/6 y : 2/3 = 21/12 – 10/12 y : 2/3 = 11/12 y = 11/12 x 2/3 y = 11/18 Vậy y = 11/18 Bình luận
1) x : 3/4 = 9/5 – 1/3
X x 4/3 = 27/15 – 5/15
X x 4/3 = 22/15
X = 22/15 : 4/3
X = 22/15 x 3/4
X = 1,1
2) 9/5 – y = 5/7
y = 9/5 – 5/7
y = 63/35 – 25/35
y = 38/35
3) y : 2/3 = 7/4 -5/6
y : 2/3 = 21/12 – 10/12
y : 2/3 = 11/12
y = 11/12 x 2/3
y ≈ 0.61
Đáp án:
Giải thích các bước giải:
x : 3/4 = 9/5 – 1/3
x : 3/4 = 27/15 – 5/15
x : 3/4 = 22/15
x = 22/15 x 3/4
x = 11/10
Vậy x = 11/10
9/5 – y = 5/7
y = 9/5 – 5/7
y = 63/35 – 25/35
y= 38/35
Vậy y = 38/35
y : 2/3 = 7/4 – 5/6
y : 2/3 = 21/12 – 10/12
y : 2/3 = 11/12
y = 11/12 x 2/3
y = 11/18
Vậy y = 11/18