Ten students take a test. Five students get a 50. Four students get a 70. If the average score is 55, what was the last student’

Question

3 years ago

14

s score?

2 answers:

jarptica [38.1K] · Answer 1 · 2022-08-25T08:48:19+03:00

8 0

Answer:

20%

Step-by-step explanation:

50x5 + 70x4 = 530. 530 divided by 9 equals 58.89. When you add 20 to 530 you get 550. 550 divided by 10 equals 55. The student got a 20%.

Kitty [74] · Answer 2 · 2022-08-25T10:02:22+03:00

Kitty [74]3 years ago

8 0

Answer:20

Step-by-step explanation:

average= total/number of items/students/whatever you take. So, here its ((5x50)+(4x70)+m)/10=55 and if you solve m you get 20 as the answer!