Her average in first three test = 89
This means, her total scores in first three test were = 3 x 89 = 267
Her average in four tests = 91
This means, her total scores in four tests are = 364
267 give the sum of first three test scores. and 364 give the sum of scores with fourth test adding in three tests.
So, subtracting 267 from 364 will give us the scores of Fourth test.
Scores of Fourth test = 364 - 267 = 97
Thus, Samantha's Claim is correct
Frank is correct.
bdhdjsbss
Answer:
Green) 24in
Yellow) 31in
Blue) 27in
Step-by-step explanation:
Just add each number of the one shape.
To find the Area:
Multiply each number
To find Perimeter:
Add each number
Answer:
127
Step-by-step explanation:
using the definition of a straight angle:
53+x=180
127
Answer:
200
Step-by-step explanation:
order of operations