Let x = price for each cake and y = price of each pie in dollars.
We can get two equations out of the data. One from the Friday set, the other from the Saturday set.
Then, we subtract both equations. The difference would be:
-20y = -160
y = -160 ÷ -20
y = $8
Finally, we substitute y to any of the equations. Suppose, we use equation 1:
30x + 20(8) = 460
30x = 460 - 160
30x = 300
x = 300 ÷ 30
x = $10
Therefore, the cost for each cake and pie is $10 and $8, respectively.
Answer:
csc
A
, as desired!
Step-by-step explanation:
cos
2
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, as desired!
Answer:
idk
Step-by-step explanation:
Answer:
(6,-11)
Step-by-step explanation:
Given
Point B' = (4,-8)
And the translation formula (x-2, y+3)
In order to get the coordinates of the point before translation, both given points have to be put equivalent.
So, for x-coordinate
x-2 = 4
x= 4+2
x= 6
And for y-coordinate
y+3 = -8
y = -8-3
y=-11
So the old coordinates of old point were (6,-11) ..
Answer:
The parameters of this exponential distribution is = .
Step-by-step explanation:
We are given that the random variable X is known to be exponentially distributed and let X be the time it takes for a person to choose a birthday gift, where X has an average value of 27 minutes.
<u><em>So, X = time it takes for a person to choose a birthday gift</em></u>
The probability distribution function of exponential distribution is given by;
where, = parameter of distribution.
Now, the mean of exponential distribution is = which is given to us as average value of 27 minutes that means .
So, X ~ Exp( ) .
Therefore, the parameter of this exponential distribution is .