Answer:
$18000
Step-by-step explanation:
To find the do $30000/5 ( do divide the price into 5 parts)
30000/5
6000
5/5 minus 2/5
3/5
6000 times 3
18000
Answer:
y=3/2x-5/2
Step-by-step explanation:
1.find the slope
y2-y2/x2-x1
2-(-1)/3-1
2+1/3-1
3/2 slope (m)
2.y-y1=m(x-x1)
y-(-1)=3/2(x-1)
y+1=3/2x-3/2
y=3/2x-3/2-1
y=3/2x-5/2
Answer:
The total refund that the museum owes the 11:00am group is $28.50
Step-by-step explanation:
$12.25*38 = $465.50
$11.50*38 = $437
Subtract: $465.50 - $437 = $28.50
B. if it is 7 inches wide it will be 6 inches tall
Answer:
(x, y) = (-6, 0)
Step-by-step explanation:
The y-coefficients have opposite signs, so we can eliminate y-terms by multiplying both equations by a positive number and adding the results.
9 times the first equation plus 4 times the second gives ...
9(5x +4y) +4(3x -9y) = 9(-30) +4(-18)
45x +36y +12x -36y = -270 -72 . . . . eliminate parentheses
57x = -342 . . . . . collect terms
x = -6 . . . . . . . divide by the coefficient of x
__
Substituting into the first equation gives ...
5(-6) +4y = -30
4y = 0 . . . . . . . . . add 30
y = 0
The solution is (x, y) = (-6, 0).