Question

НЕ справляюсь с заданием а) 4,2/25,2; б) (2 2/5)/(1 1/15); в) (4 2/7 ∙ 1 3/4 – 3,36)/(0,8 +1,5 ). Помогите пожалуйста!!!)))

Answer 1

А)4,2/25,2=42/10:252/10=42/252=1/6
Б)2 2/5:1 1/15=12/5:16/15=9/4=2 1/4
В)(4 2/7* 1 3/4-3,36)/(0,8+1,5)
1)4 2/7*1 3/4=16/7*7/4=4
2)4-3,36=0,64
3)0,8+1,5=2,3
4)0,64/2,3=64/100:23/10=64/230=32/115

Answer 2

На калькуляторе посмотри!
И ответ

Answer 3

Task a) 4.2/25.2

To solve the expression 4.2/25.2, we simply divide 4.2 by 25.2.

The result is approximately 0.16666666666666666.

Task b) (2 + 2/5) / (1 + 1/15)

To solve the expression (2 + 2/5) / (1 + 1/15), we first simplify the numerator and denominator separately.

The numerator becomes (10/5 + 2/5) = 12/5.

The denominator becomes (15/15 + 1/15) = 16/15.

Now, we divide the numerator by the denominator:

(12/5) / (16/15) = (12/5) * (15/16) = 180/80 = 2.25.

Therefore, the result is 2.25.

Task c) (4 + 2/7) * (1 + 3/4 - 3.36) / (0.8 + 1.5)

To solve the expression (4 + 2/7) * (1 + 3/4 - 3.36) / (0.8 + 1.5), we first simplify the numerator and denominator separately.

The numerator becomes (30/7) * (-0.61) = -18.42857142857143.

The denominator becomes (2.3) = 2.3.

Now, we divide the numerator by the denominator:

(-18.42857142857143) / (2.3) = -8.010989010989011.

Therefore, the result is approximately -8.010989010989011.

I hope this helps! Let me know if you have any further questions.