has been 

as big as

very excited 

haven't sold

enjoyable

has been 
as big as

very excited
haven't solo
Enjoyable

Lời giải:
$x:\frac{1}{2}+x:\frac{1}{3}+x:0,1-x\times 5=100$

$x\times 2+x\times 3+x\times 10-x\times 5=100$

$x\times (2+3+10-5)=100$

$x\times 10=100$

$x=100:10$

$x=10$

chịu

d
c

Chào bạn, bạn có thể cho mình biết chổ bạn cần giúp đc hông? Mình sẽ làm thêm.

5. D

6. C

II

1. B

2. A

III

1. B => before

2. A => take

3. D => station

4. B => more serious

IV

1. use

2. improving

3. were talking

4. would go

5. will have

6. collect

7. going

8. disappointed

a, X : 3 x 48 + X : 4 x 36 = 1500

    X x \(\dfrac{1}{3}\) x 48 + X x \(\dfrac{1}{4}\) x 36 = 1500

    X x 16 + X x 9 = 1500

    X x ( 16 + 9 ) = 1500

    X x 25 = 1500

    X = 1500 : 25

    X = 60

b, X + 7,5 x X : 5 + X : 2 x 9 = 315

    X + 7,5 x X x \(\dfrac{1}{5}\) + X x \(\dfrac{1}{2}\) x 9 = 315

    X + X x 1,5 + X x 4,5 = 315

    X x ( 1 + 1,5 + 4,5 ) = 315

    X x 7 = 315

    X = 315 : 7

    X = 45

gym: nhà thể chất, phòng thể chất, ...

bằng 83/90

\(\frac{1}{2}+\frac{1}{5}+\frac{2}{9}\)

=\(\frac{45}{90}+\frac{18}{90}+\frac{20}{90}\)

=\(\frac{83}{90}\)

\(\frac{1}{2}+\frac{1}{5}+\frac{2}{9}=\frac{1}{2}_{\left(45\right)}+\frac{1}{5}_{\left(18\right)}+\frac{2}{9}_{10}\)

\(=\frac{45}{90}+\frac{18}{90}+\frac{20}{90}=\frac{45+18+20}{90}\)

\(=\frac{83}{90}\)

Số lớn nhất là 16,5

11+11=22

22 nha ban

11 + 11 = 22