kenzie1223444 kenzie1223444

19-03-2021
Mathematics

contestada

Sandra took 4 tests in math and her mean score was 18. I she scored 18, 22, and
17 in three tests, find Sandra's score in the fourth test.

Respuesta :

muriungiweric muriungiweric

19-03-2021

Answer:

15

Step-by-step explanation:

(18+22+17+x)/4=18

18+22+17+x=18×4

57+x=72

x=72-57

x=15

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