Answer:
below
Step-by-step explanation:
mean=EFX÷N
=40÷8
=5
THIS IS THE MEAN OF GIVEN DATA.
-2(x - 5) + 4(9 + x)
-2x + 10 + 36 + 4x
=2x + 46
<h3>
Answer: m+n-mn</h3>
You can write mn as m*n
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Explanation:
The sum is the result of adding two or more numbers. Saying the sum of m and n means m+n.
Then we subtract off the product of m and n. The product is the result of multiplying m and n. We say m*n or mn to indicate their product.
Overall, we end up with m+n-mn
Call x is the number of girls in the classroom.
12/120 = 25/x
x = 120*25/12
x=250
Answer 250 girsl
