On a buying trip in Los Angeles Rosario Perez ordered 120 pieces of jewelry a number of bracelets at $8 each and a number of nec
1 answer:
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Answer:
B ) Negative
Step-by-step explanation:
Given the expression 3xy
when x>0 and y<0
The value of the expression 3xy will be negative.
This is because the product of a positive and negative number will always be negative.
For illustration,
Let x=5>0 and y=-5<0
3xy=3(5)(-5)=-75
NOTE:
Answer:
5 tulips.
Step-by-step explanation:
Given:
The expression for the cost of the tulips is
Where, is the number of tulips.
Now, Joanna has .
So, number of tulips that can be bought with the above amount can be obtained by substituting for cost. This gives,
.
As the number of tulips cannot be in decimals or fractions, so the maximum number of tulips that can be bought will be 5.
Answer:
1.
2 a)
b) 0
3. x = 10
Step-by-step explanation:
1.
2. a)
b)
3.