Emma's sister is nine years older than Emma. Their combined ages add up to 49.How old is Emma. write and equation and solve
2 answers:
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ANSWER
EXPLANATION
We want to evaluate
Use indices to rewrite the expression as:
We know that
So we rewrite the expression to obtain;
This gives us;
This simplifies to
Complete Question
The histogram from this question is shown on the first uploaded image
Answer:
The first quartile is
The median is
The third quartile is
The mean is
Step-by-step explanation:
From the question we are told that
The total number of girls is n = 74
Generally the median is mathematically represented as
So
=>
=>
From the histogram fall under 2 fruits per day
Generally the first quartile is mathematically represented as
=>
=>
From the histogram girl fall under 1 fruit per day
Generally the third quartile is mathematically represented as
=>
=>
From the histogram fall under 4 fruits per day
Generally from the histogram table the frequency [number of subjects (girls) ] and the servings of fruit per day can be represented as
Total
x(servings per day ) 0 1 2 3 4 5 6 7 8
f (number of subjects ) 15 11 15 11 8 5 3 3 3
xf 0 11 30 33 32 25 18 21 24
Generally the mean is mathematically represented as
=>
=>
