Answer:
Boys: 75%
Girls: 25%
Step-by-step explanation:
Total: 28 Students: 100%
7 Girls in clas
28(total)-7 (girls)= 21 Boys in class
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If we divide the amount boys OR girls ( depending on which gender) after the toal and move the decimal to the right twice after dividing) we will get our answer.
Formula:
(Amount of Boy or girls) = x
X/28
So since we are trying to get the percentages of boys, we will replace X with the amount of boys
21/28 = .75 ( then move the decimal to the right TWICE) = 75
Then you should get your percentages: 75% Also if your lookings for girls percentages, you basically subtract 75 ( boys percentages) with the total percentages ( 100) then you should get your answer for the girls: 25%
Answer:
1/3
Step-by-step explanation:
Of the 15 students in the class, 5 are boys with glasses. The probability of selecting one at random is 5/15 = 1/3.
Answer:
4x -2 = 3 and 4x + -2 = 3
Step-by-step explanation:
-2 + 4x = 3 ---- 4x -2 = 3 ------------ 4x + -2 = 3
+2 +2 - 2 +2
------------------ ----------------
4x = 5 4x = 5
---- ---- ----- -----
4 4 4 4
x = 1.25 or 1 1/4 x = 1.25 or 1 1/4