Material

1.       Look at the following mathematical Expressions, Which one  is the linear equation with one  variable?

A.  2ab – 3 = 4ab                                 C.  4a – 6 = 8 + 3a

B.. 3a – 5b = a + b                               D.  2a² + 2a – 8 = 10

2.       Andi is two years younger  than Chinta and Budi is 10  years  older than Chinta.  The sum of Andi’s age and Bud’s age  as same as of  three  times  Chinta’s age.  If  Andi  is  A, Budi is B and  Chinta is  C.  The following  shows  the algebraic expression of the problem.

                (i)            A = C – 2               (iii).  C - 2 + 10 + C = 3C

                (ii)           B = 10 + C             (iv)    A + B  = 3C

The true algebraic expression  is . . .  .

A.      (i)  and  (ii)                     C.  (i), (ii), and  (iv)

B.      (ii)  and  (iv)                   D.  (i), (ii), (iii)  and  (iv)

3.         equivalent  with  . . .

A.3x + 2 = x                           C.  5x  =  8

B. 5x + 8 = 2x                        D.  5x  = -8

4.       The solution of   is . . . .

A.    x = -18                                            C.   x = 14

B.    x = -14                                            D.   x = 18

5.       Given a rectangle. The length of rectangle is  4   cm more than width of rectangle.  If the perimeter of rectangle is 44 cm, so the  area of the rectangle is  .  .  .   cm²

A.   108                                  C.   126

B.   117                                  D.   135

6.       A laptop  manufacturer  assembles  c  laptops  in  year.  The  number  of  laptops  is not more  than  60,000. The  inequality  that  represents  the  number  of  laptop  assembled  in  a  month  is  . . . .

A.    C  ³  60,000                    C.    12c  <  60,000

B.      <  5,000                  D.    12c  £  5,000

7.       The  solution of     x + 19  <  3x + 7  is  . . . .

A.    x  <  13                                             C.  x  > 13

B.    x  <  6                                               D.  x  > 6

8.       The  price  of  2  mathematics  books  and  3  science  books  is  Rp.  360,000.00.  If  the  price  of  a book  science  is  Rp.  80,000.00,  and  m  represents   the  price  of  the  mathematics  books,  the  mathematical model to find  the  price  of  a mathematics  book  is   . . . .

A.    2m + 80,000  =  360,000             

B.    3m – 80,000 = 360,000

C.    2m + 240,000= 360,000                                             

D.    3m – 240,000= 360,000

9.       Bondan  plans  to save  his money  for buying  a bycicle. The price of the bycicle is at least Rp 1,200,000.00. His parents give him Rp 450,000.00. Let  m represents the money he has to save. Then  .  .  . 

A.    m £ 750,000.00             ff             C.  m ³ 750,000.00

B.    m < 750,000.00                             D.  m > 750,000.00

10.    When  Lela’s money  is  multiplied  by  five, it  will be  equal  to Rida’s  money  plus  Rp500,000.00. If  The sum  of two times of Lela’s money  and  Rida’s  money  is  Rp. 900,000.00  So the  amount  of  Rida’s  money  is  .  .  .

A.    Rp100,000.00                                                C.  Rp600,000.00

B.    Rp500,000.00                                                D.  Rp1,100,000.00