Answer: the mixture contained 15 pounds of white chocolate and 5 pounds of dark chocolate.
Step-by-step explanation:
Let x represent the number of pounds of white chocolate in the candy shack mixture.
Let y represent the number of pounds of dark chocolate in the candy shack mixture.
The candy shack has 20 lb of mixed white and dark chocolate. This means that
x + y = 20
The 20lb mixture is worth $7.50 per pound. This means that the total cost of the mixture is
20 × 7.50 = $150
White chocolate alone sells for $8.00 per pound and dark chocolate sells for 6.00 per pound. This means that
8x + 6y = 150 - - - - - - - - - - - - - -1
Substituting x = 20 - y into equation 1, it becomes
8(20 - y) + 6y = 150
160 - 8y + 6y = 150
- 8y + 6y = 150 - 160
- 2y = - 10
y = - 10/ - 2
y = 5
x = 20 - y = 20 - 5
x = 15
Answer:
(-13m - 1)/(n + 5).
Step-by-step explanation:
-5m-9/n+5 + -8m+8/n+5
The denominators are the same so we add the numerators:
= (-5m - 9 - 8m + 8 / (n + 5)
= (-13m - 1)/(n + 5).
Answer:
75 paise
Step-by-step explanation:
We know that 1 rs = 100 paise
So, solving the expression gives -
The coefficient of 2xy3 is 2
