Answer:
The annual profit is $6384, if the baker sells 240cupcakes
Step-by-step explanation:
Annual profit in dollars from selling cupcakes = 
where n is the number of cupcakes sold .
We need to find the annual profit if the baker sells 240cupcakes.
If baker sells 240 cupcakes, so we have n = 240
Putting value of n in the given equation and finding profit

So, The annual profit is $6384, if the baker sells 240cupcakes
 
        
             
        
        
        
It's best to write the two equations as a vertical column:
8x+14y=4 
-6x-7y = -10
Note that if we multiply the 2nd equation by 2, we get -12x - 14y = -20. The reason for wanting this version of the 2nd equation is that its -14y cancels the +14y in the first equation:
-12x - 14y = -20
8x+14y=4
Combine these equations, column by column. We get -4x = -16, which results in x = 4. Now find y by subbing 4 for x in either given equation. If we use the first equation, we get 8(4) + 14y = 4, or 32 + 14y = 4, or 14y = -28. Then y = -2.
The solution to this system of linear equations is thus (4,-2). 
Check this result by substitution of these coordinates into -6(4) - 7y = -20:
-24 - 7(-2) = -10. Is this true or not?
 -24 + 14 = -10 is true. Thus, (4,-2) is the desired solution.
 
        
             
        
        
        
Calculating the cost of 4.25 kilogram(kg) is £2.38, by multiplying it by 4.25 kg by 1 kg.
<h3>Cost</h3>
Costs are the expenses incurred in the manufacture, marketing, or preparation of a good or asset for regular use. In other terms, it's the cost incurred to produce a good, buy inventories, sell goods, or prepare equipment for use in a commercial activity.
Given,
2.5 kg cost  £1.40 i.e,
2.5 kg = £1.40
 For 1 kg= 
 = £0.56
To find the cost of 4.25 kg:
Then,
1 kg = £0.56
4.25 kg = 0.56 x 4.25
 = £2.38
 £2.38 is the cost of 4.25kg after calculating it.
To know more about calculating cost visit here:
brainly.com/question/11871927
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Answer:
6
Step-by-step explanation:
8x+6x+6 = 90
14x = 84
x = 6
 
        
             
        
        
        
Answer:
I would find it by multiplying -3x-2 and getting six. Then I would multiply -1x2 and get -2 then I would add six and -2 and get 4.
Step-by-step explanation: