Answer:
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Step-by-step explanation:
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Answer: The multiplicative inverse is 1/2 the addition inverse is -2
Step-by-step explanation:
Since the inverse of multiplication is division, use a fraction. The inverse of addition is subtraction.
Answer:
30
Step-by-step explanation:
following the bodmas rule
we will get the answer 30
Answer: 195
Step-by-step explanation:
Cost per student = $4
Total number who attended = n
The cost of the total of student who attended will be cost per student multiplied by the total number of students, that is
Total cos = 4n
Since, they are to pay $140 , for publicity, then the total cost becomes
T = 4n - 140
From the last statement
4n - 140 ≥ 640
4n ≥ 640 + 140
4n ≥780
n ≥ 780/4
n ≥ 195
That means at least 195 students must attend if the science club is to earn at least $ 640
Answer: 2x+4=10
Step-by-step explanation:
because each notebook would cost $3 so 2 x 3 = 6 +4=10