You should pat a total of $90.44
Assuming 0 and 100 are included in the possible choices:
There are
multiples of 7 between 0 and 100, so there is a
probability of choosing a multiple of 7.
Mean: 48.7
Median: 38
Mode:55
Answer:
<h3>Part A</h3>
As per the given information there are 4 different price intervals.
<u>Let x be the age and y be the admission price, then we have following equations;</u>
- y = 10.50, if 15 ≤ x ≤ 61
- y = 8.50, if x ≥ 62
- y = 6.50, if 2 ≤ x ≤ 14
- y = 0, if 0 ≤ x ≤ 1
W= width
l= length= 2w-3
Area= length * width
A= lw
substitute l=2w-3 for l
54= (2w-3)(w)
54= 2w^2 - 3w
subtract 54 from both sides
0= 2w^2 - 3w - 54
factor the polynomial
0= (2w + 9)(w - 6)
Set each set of parentheses equal
to 0 and solve for width.
0=2w+9
-9=2w
-4.5= w NEGATIVE VALUE
0=w-6
6 cm=w
-4.5 is not the answer because it has a negative value. You cannot have a negative side of a photograph. So substitute 6 in to find length.
length= 2w-3
l= 2(6)-3
l= 12-3
l= 9 cm
CHECK:
w= 6cm
l= 9cm
Area= length * width
54= 6*9
54= 54
ANSWER: width= 6cm; length= 9cm
Hope this helps! :)
