Answer:
Plates are 2.80 Dollars and cups are 1.40 dollars
Step-by-step explanation:
Cups = c
Plates = p
6p + 5c = 23.80 ==> multiply by 6 ==> 36p + 30c = 142.80
7p + 6c = 28.00 ==> multiply by 5 ==> 35p + 30c = 140.00
Now use algebra to have the 30c be on one side and the rest on the other:
36p + 30c = 142.80 | -36p
30c = 142.80 - 36p
35p + 30c = 140.00 | -35p
30c = 140.00 - 35p
Now set them equal to each other about the 30c:
142.80 - 36p = 140.00 - 35p
Use algebra to solve for p:
142.80 - 36p = 140.00 - 35p | +36p
142.80 = 140.00 + p | - 140
2.80 = p
Go back to one of the "30c" equations and plug in the value for p:
30c = 140 - 35p
30c = 140 - 35(2.80)
30c = 140 - 98
30c = 42 | /30
c = 42/30
c = 1.4
Some symbols are missing. I'm assuming you meant to put in a horseshoe symbol like so
If so, then the contrapositive of that would be
which is the final answer.
The tilde sign
means "not" so writing
means "not q" which is the complete opposite of q.
The slope is : -5/2
The equation is : y=-5/2x + 5
Where is the multiple choice answers ?
Answer:
The second equation B is correct
Step-by-step explanation:
N + Q = 32 and .5N + .25Q = 3.00
unlike the other equations this equation has the correct input for how much a quarter and nickel are worth relevant to the dollar amount rather than the coin amount.
