He worked an 8 hour day 3 days.
Let x be the number of 8 hour days he works. Then 10-x is the number of 6 hour days he works.
8x + 6(10-x) = 66
Using the distributive property,
8x + 6*10 - 6*x = 66
8x + 60 - 6x = 66
Combining like terms,
2x + 60 = 66
Subtract 60 from both sides:
2x + 60 - 60 = 66 - 60
2x = 6
Divide both sides by 2:
2x/2 = 6/2
x = 3
There were 3 days he worked 8 hours.
M + 4 > 7
m - 4 > 7 - 4
m > 3
All numbers greater than 3. {4, 5, 6, ...}
The computation shows that the number of groups that can be made is 4 groups.
<h3>How to calculate the number?</h3>
From the information given, it should be noted that the number is said to be more than 30 and lower than 40.
In this case, it can be noted that the number that is more than 30 and lower than 40 and can be divided into 8 is 32.
Therefore, the number in each group will be:
= 32/8
= 4
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Answer:
(0, 3) (0, -4) (-5, 4) (1, 1)
I think they are 81/90 and 75/90