Additional Activities Read and translate the following word problems into algebraic equation. Write your answer in your answer sheet. 1. The sum of three numbers is 20. Two of these numbers are 9 and 6. What is the value of the third number. 2. Alfredo is 5 years older than John, and Maria is 4 years younger than John. If the sum of their ages is 34, how old is John? 3. Find the dimensions of a rectangle if the length is 7 inches more than the width and the perimeter is 54 inches. 4. The area of a rectangle garden is 64 square meters. If the length is 4 times the width, what are the dimensions of the garden?​

Sagot :

Answer:

  1. 5
  2. 11 years old
  3. 17 inches

Explanation:

1. 20(6+9) = N

20 15 = N

N= 5

2. Alfredo 16

John 11

Maria 7

3. P= 2(1+w)

1= w +7

P = 54

substitute

54 = 2(w+7+w)

54/2= 2w+7

transpose

2w= 54/2 7

2w= 277

2w= 20

w= 20/2

w= 10 inches

substitute

1= w+7

1= 10+7

1= 17 inches

eto lang po alam ko hehe