Answer:
She sold 72 small photos and 54 large photos.
Step-by-step explanation:
We can set a equations system with the given information. Let X be the quantity of small photos and Z large photos.
We are told that she sold 126 photos in total, so:
X + Z = 126
Also, she earned 2,250 by selling certain quantities of small photo and large photos, so:
$2,250 = $11X + $27Z
From the first equation we get that X=126-Z, replace that into the 2nd equation:
2,250 = 11(126-Z) +27Z
2,250 = 1,386 - 11Z + 27Z
2,250 - 1,386 = 16Z
864 = 16Z
Z = 864/16
Z = 54 is the number of large photos sold. Now find X.
X = 126 - Z
X = 126 - 54
X = 72 is the number of small photos sold.
~Refer to the attachment for the solution.
I believe the answer is 13in
I hope this helps
Answer:
The peak fare price is $2,2
Step-by-step explanation:
Considering
Person 1
5x + 4y= 17,40
Person 2
2x + 3y= 9,20
Isolating the x
2x= 9,20-3y
x=(9,20-3y)/2=4,6 -1,5y
x=4,6 -1,5y
Replacing in the other equation
5 (4,6 -1,5y) + 4y=17,40
23-7,5y+4y=17,40
23-17,40=7,5y-4y
5,6=3,5y
y=1,60 (this is the off peak fare)
x= 4,60-1,5y
x= 4,60-1,5*1,60
x=2,2 (this is the peak fare)
The answer is 0 since when you round it to thousandth you make it 0 but if more than 500 shove it into place.