4000 : (x : 8 - 700) = 5
<=> x : 8 - 700 = 800
<=> x : 8 = 1500
<=> x = 12000
@Sunin Quất

4000 ÷ ((x ÷ 8)-700)=5

(x ÷ 8)-700=4000÷5

(x÷8)-700= 800

x ÷ 8 = 1500

x=12000

x+ 200 = 700- 400 - 100

x+ 200 = 300-100

x+ 200 = 200

x = 200-200

x=0

x+200=700-4000-100

x+200=-3300-100

x+200=-3200

x=-3200-200

x=-3400

-3600 ra âm đó

3/15, 3/5, 6/5, 8/5

giúp mình với, đi mà mọi người

3/15; 3/5; 6/5; 8/5

\(=1092\left(857142\right)\)

= 1092,85714285

\(\approx101\)

a) 3000 + 5000 = 8000

      5000 + 5000 = 10 000

      4000 + 4000 = 8000

      7000 + 2000 = 9000

      6000 + 1000 = 7000

      2000 + 8000 = 10 000

b) 2000 + 700 = 2700

      100 + 1000 = 1100

      6000 + 600 = 6600

      8000 + 500 = 8500

      5000 + 300 = 5300

      400 + 6000 = 6400

a) 3000+5000=8000

5000+5000=10000

4000+4000=8000

7000+2000=9000

6000+1000=7000

2000+8000=10000

b) 2000+700=2700

100+1000=1100

6000+600=6600

8000+500=8500

5000+300=5300

400+6000=6400

a) 3000 + 5000 = 8000

      5000 + 5000 = 10000

      4000 + 4000 =8000

      7000 + 2000 = 9000

      6000 + 1000 = 7000

      2000 + 8000 = 10000

b) 2000 + 700 = 9000

      100 + 1000 = 1100

      6000 + 600 =12000

      8000 + 500 = 13000

      5000 + 300 = 5300

      400 + 6000 = 6400

2021+ 20% + 4/5

= 2021+(1/5 + 4/5)

=2021 + 1 

= 2022

giúp mình nhanh nhé

2,021

43/250+40/250=83/250

12/25+1/5=120/250+50/250=170/250

=>43/250+40/250<12/25+1/5

4/5=20/25

15/25=15/25

\(\dfrac{15}{25}giữ.nguyên;\dfrac{4}{5}=\dfrac{4\times5}{5\times5}=\dfrac{20}{25}\)

\(\dfrac{4}{5}=\dfrac{4x5}{5x5}=\dfrac{20}{25}\)

\(\dfrac{15}{25}\) giữ nguyên