Victoria’s printer can print 8.804 in one minute if Victoria’s prints page for 0.903 minutes,
We apply unitary method
In one minute the number of pages printed is 8.804. we need to find the number of pages for 0.903 minutes
1 minute = 8.804 pages
0.903 minutes = ? pages
We multiply 8.804 by 0.903
8.804 * 0.903 = 7.95
Number of pages printed = 7.95 pages
7 14/18 since you can reduce this to 7 7/9:)
29.10 for the first question radius
I'm not sure if it only wants you to find Equation 1 or go further and solve:
x = the number of 5c coins
y = the number of 10c coins
Equation 1: the total number of coins is 65
x + y = 65
total value of $3.80
0.05x + 0.1y = 3.8
<u>Simultaneous Equations</u>
Make one coefficient the same
10 * (0.05x + 0.1y = 3.80 = 0.5x + y = 38
x + y = 65
0.5x + y = 38
Subtract the equations
(x + y) - (0.5x + y)= 65 - 38
(x - 0.5x) + (y - y) = 65 - 38
0.5x = 27
x = 54
Substitute it into the original equation to find y.
x + y = 65
54 + y = 56
y = 65 - 54 = 11
Substitute it into the other equation to check it's right.
0.05x + 0.1y = 3.8
0.05(54) + 0.1(65) = 3.8
x = 54 5c coins
y = 11 10c coins