Question

(x +7,9): 2,29 -10:45.(10x +5,5)=90​

Answer 1

a)x+1 7/9=2 4/9 б)3 5/8-x=1 3/8 в) x-2 4/11=4 1/11 г) 2 7/18+x=5 5/18

x=2 4/9-1 7/9 -x =1 3/8-3 5/8 x=4 1/11+2 4/11 x=5 5/18-2 7/18

x=22/9-16/9 -x=11/8-29/8 x=6 5/11 x=95/18-43/18

x=6/9=2/3 x=18/8=2 1/4 x=52/18=2 8/9

д)x+3 7/10=5 3/10 е)4 7/12-x=3 5/12

x=5 3/10-3 7/10 -x=3 5/12-4 7/12

x=53/10-37/10 -x=41/12-55/12

x=16/10=1 3/5 x=14/12=1 1/6

4 8/13-x=1 5/13 x+1 3/14=3 9/14 2 11/15+x=5 2/15 x-2 5/16=4 13/16

x=4 8/12-1 5/13 x=3 9/14-1 3/14 x=5 2/15-2 11/15 x=4 13/16+2 5/16

x=3 3/13 x=2 6/14=2 3/7 x=77/15-41/15 x=6 18/16=7 1/8

x=36/15=2 2/5

5 15/19-x=3 3/19 x+1 11/18=3 7/18

x=5 15/19-3 3/19 x=3 7/18-1 11/18

x=2 12/19 x=61/18-29/18

x=32/18=1 7/9

554) 54 2/5+43 1/5+60 4/5=157 7/5= 158 2/5 литров молочных продуктов предлагает буфет

555) 4 3/7+2 5/7=6 8/7=7 1/7 т упаковывают кешью

4 3/7 +7 1/7=11 4/7 т упаковывают арахиса и кешью вместе

11 4/7-1 6/7=81/1-13/7=68/7=9 5/7 т упаковывают фисташек

11 4/7 +9 5/7=20 9/7=21 2/7 т упаковывают орехов за смену

Пошаговое объяснение: так много я старался

Answer 2

It seems like you've provided an equation, but it's a bit unclear due to the formatting and symbols used. I'll try to interpret and solve it for you:

The equation appears to be: (x + 7.9) * 2.29 - 10:45 * (10x + 5.5) = 90.

Let's break it down and solve step by step:

1. First, distribute the constants in the parentheses: (2.29x + 20.491) - (10/45) * (10x + 5.5) = 90

2. Simplify the fraction 10/45, which reduces to 2/9: (2.29x + 20.491) - (2/9) * (10x + 5.5) = 90

3. Distribute the fraction: (2.29x + 20.491) - (2/9) * 10x - (2/9) * 5.5 = 90

4. Now, perform the multiplications: 2.29x + 20.491 - (20/9)x - (11/9) = 90

5. Combine like terms (x terms and constants): (2.29x - (20/9)x) + (20.491 - (11/9)) = 90

6. Now, simplify further: (20.29/9)x + (20.491 - 11/9) = 90

7. Continue simplifying: (20.29/9)x + (20.491 - 11/9) = 90

8. Subtract the constant term from both sides: (20.29/9)x = 90 - (20.491 - 11/9)

9. Calculate the value on the right side: (20.29/9)x = 90 - (20.491 - 11/9) (20.29/9)x = 90 - 20.491 + 11/9

10. Continue simplifying: (20.29/9)x = 69.509 - 20.491

11. Further simplification: (20.29/9)x = 49.018

12. Now, isolate x by dividing both sides by (20.29/9): x = (49.018) / (20.29/9)

13. Finally, calculate the value of x: x ≈ 20.643

So, the approximate value of x is about 20.643.