Answer:
30
Step-by-step explanation:
He took 5 pieces.
His children took 5 * 5 pieces = 25
The total is 5 + 25 = 30.
Answer:
Answer for Q8: the smallest is 2 root 3 and the largest is 3 root 2
Answer for Q9: (x+y)(x-2)
Step-by-step explanation:
Q8: Type on a calculator to convert all of them to decimals and then compare
Q9: Factor by grouping. See attached.
Answer:
21
Step-by-step explanation:
25/28 - 2/7
it doesn’t need to be solved because it asked for an expression and not an equation, so no equal sign either
Answer:
27 and 23
Step-by-step explanation:
We can solve this problem as a system of equations. X is the first number and Y is the second number.
The first equation is x+y = 50 and the second equation is x-y=4
Now we solve the system, using elimination method:
x+y=50
x-y=4
2x = 54
x = 54/2
x = 27
And from any of the equations we can find Y
27 + y = 50
y = 50 - 27
y = 23
