0.4a=80
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0.4 0.4
a=200
Where a is the number times 40%, which is 0.4 in decimal form.
Answer:
DON'T LOOK AT THE PICTURE!!
Step-by-step explanation:
To factor this quadratic equation into double brackets, you need to find two numbers that add together to equal 10, but also multiply to give you 9. These two numbers can be identified as 1 and 9, which will be the numbers you place in your parentheses as follows:
(x+1)(x+9)
