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jwbri
26.02.2021 •
Mathematics
I beeen working on this assignment for 2 hours so if uur good with these stay with me and help please/ Also answer this
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Ответ:
the answers are 10(x+15)+20(x+30) and 10x+150+20x+600 and 30x+750
Step-by-step explanation:
the first one becuze that what it would look like if written out then the second one becuze that what it would look like if you distributed the 10 and the 20 that outside the parentheses then the third option because you would then combined like numbers so you would do 10x + 20x to get 30x and 600 + 150 to get 750
hope this help please give brainlist
Ответ:
The ones with asterisks below are correct
Step-by-step explanation:
10 days times (x minutes reading/per day + 15 minutes writing/per day)
+ 20 days times (x minutes reading/per day + 30 minutes writing/per day)
= 10(x+15) + 20(x+30)
= 10x + 10*15 + 20x + 20*30
= 10x + 150 + 20x + 600
= 30x + 750
Hope this helps, but have to go now.
Ответ:
the eq of line is y= -2/3x-7