Answer:
(P, Q) = (-75, 57)
Step-by-step explanation:
The equation will have infinitely many solutions when it is a tautology.
Subtract the right side from the equation:
Px +57 -(-75x +Q) = 0
x(P+75) +(57 -Q) = 0
This will be a tautology (0=0) when ...
P+75 = 0
P = -75
and
57-Q = 0
57 = Q
_____
These values in the original equation make it ...
-75x +57 = -75x +57 . . . . . a tautology, always true
<h3>
Answer: 90 g of butter </h3>
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Work Shown:
450 g of butter = 60 biscuits
450/60 g of butter = 60/60 biscuits ... divide both sides by 60
7.5 g of butter = 1 biscuit
This means each biscuit needs 7.5 grams of butter
Multiply both sides by 12 to get
7.5 g of butter = 1 biscuit
12*7.5 g of butter = 12*1 biscuit
90 g of butter = 12 biscuits
Answer:
Y is NOT a function of X
Step-by-step explanation:
I guess this because it doesn't go in a pattern.
Answer:
84
Step-by-step explanation:
The equation would be
x/14 + x/11 = 1
x is the amount of time that they work, and since they are working at the same time, it would be the same variable. We use fractions because we want to find each person’s unit rate.
Then, just solve for x to get the total amount of time.
