Mathematics
09.10.2022 06:32
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If sean earns 8.50 per hour and made a total of 80.75 today,how many hours did he
If sean earns 8.50 per hour and made a total of 80.75 today,how many hours did he work?
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Leftie500
4,5(27 marks)
107.46
try using a calculator. really helps
try using a calculator. really helps
alimfelipe
4,7(76 marks)
Distribute
if we have
(a+b)(c+d)=(a+b)(c)+(a+b)(d)=(ac)+(bc)+(ad)+(bd) so
the way I like it is
x times x=x^2
3 times x=3x
x times -3=-3x
3 times -3=-9
add them together
x^2+ 3x-3x-9
x^2-9 is the naswer
if we have
(a+b)(c+d)=(a+b)(c)+(a+b)(d)=(ac)+(bc)+(ad)+(bd) so
the way I like it is
x times x=x^2
3 times x=3x
x times -3=-3x
3 times -3=-9
add them together
x^2+ 3x-3x-9
x^2-9 is the naswer
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