Boys to girls ratio is 3:4 so for every 7 students 3 are boys and 4 are girls bc 3+4 is total students in the ratio. boys are 3/7 so out of 28 students there are 12 boys and girls are 4/7 so out of 28 students 16 are girls
12/28 are boys
16/28 are girls
Answer:
1 3/5 after it is reduced
Step-by-step explanation:
9 is real answer hope you’re doing great
Answer:
A. = 3.053
B. = 1.85
C. =-1.85
D. since the z sore is less than -2, the highest weight is significantly low
Step-by-step explanation:
a) Difference between weights
= 5.31 - 2.527
= 3.053
b) Number of standard deviations = = 3.053÷1.655
= 1.85
c) the z score = \frac{\bar{X}-5.26}{s}
= (2.527 - 5.31 )÷1.655
= −3.053 ÷ 1.655
=-1.85
d) since the z sore is less than -2, the highest weight is significantly low
As in step 2 the student added -2 only at one side of equation which is against the law of addition property of equality
so the correct option from above equation is
The student did not properly apply the addition property of equality to isolate x.
SO its B
hope it helps
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