To find an average you add the data values and divide by how many value you have. Since we don't know the one cubs weight we'll use a variable. Set up an equation to find average using x as the weight that is unknown.
Now solve.
(294 + 268 + x )/3 = 288
Multiply both sides by 3 to clear the fraction.
(294 + 268 + x) = 864
Add the left side.
562 + x = 864
Subtract 563 from both sides
x = 302
Answer:
Then the determinant is 0.
Step-by-step explanation:
Determinant of ( 1 2 ) = 1*2 - 2*1 = 0
( 1 2 )
When you see a problem like this (dividing with 1) just turn the second one upside-down
so the answer is
4/7
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mark me as brainliest if this helped
8 and 1/8 are good so that would be the answer