Question

Directions: Read and understand and following situations, then do what is asked.

1. Krista's is score in her Math quiz is 30. Des's score is 20 less than twice Krista's score.
Dodie's score is 4 less than Krista's score.

a. What is score score of Des? _________
b. What is the score of Dodie? _________
c. What is the average score of the three girls? __
d. Who scored the least? _______


2. Vincent's weight is 6 kilograms more than Ezekiel's weight Daniel's is 3 kilograms less than Ezekiel's weight. The average weight of the 3 boys is 63 kilograms.

a. What is the weight of Vincent? ________
b. What is the weight of Ezekiel? ________
c. What is the weight of Daniel? _________
d. What is the total weight of the three boys? ____



Need Answer!! A.S.A.P​

Answer 1

Formula to find average:

Total value / number of values

____________

1. Krista = 30

a) Des = 2(30) - 20 = 40

b) Dodie = 30 - 4 = 26

c) Average score = 40 + 30 + 26 / 3 = 32

d) Dodie scored the least marks.

_____________

2. Ezekiel = x

Vincent = 6 + x

Daniel = x - 3

Average = 63

63 = x + 6 + x + x - 3/3

63 × 3 = x + 6 + x + x - 3

189 = 3x + 3

189 - 3/3 = x

62 = x

a) Vincent = 6 + x = 68 kg

b) Ezekiel = x = 62 kg

c) Daniel = x - 3 = 59 kg

d) Total weight = 62 + 68 + 59 = 189 kg

_____________

Hope it helps ⚜