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Reese1394
22.08.2019 •
Mathematics
Can you me solve 5(5a +3) = 14a - 29
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Ответ:
25a+15=14a-29 -- subtract 15 and subtract 14a from both sides
11a=-44 -- divide by 11
a=-4
Ответ:
5(5a)+5(3)=14a-29
25a+15=14a-29
-14a -14a
11a+15=-29
-15 -15
11a=-44
11a/11=-44/11
a=-4
Ответ:
A) We know that she make $7 per hour, with this we can make a table:
1hr | $7
2hr | $14
3hr | $21
etc...
B) If in one week she earns $105 and 1w = 7h (1hr = $7) holds true, that means that we have to divide 105 by 7 which gives us 15hrs
C) If she baby-sat for 24hrs, we just have to multiply that by 7 and we get $168
Hope that helped!