Formula is 2(wl+hl+hw)
2[(7x20)+(15x20)+(15x7)]
=1090 cm^2
Answer:
A computer costs $225 and a printer $150.
Step-by-step explanation:
Let c be the cost of a computer and p the cost of a printer, then:
3c + p = 825
4c + 2p = 1200
Multiply the first equation by -2:
-6c - 2p = -1650
Add this to the second equation:
-2c = -450
c = 225.
Now substitute c = 225 in the first equation:
3*225 + p = 825
p = 825 - 675 = 150.
Square Root to the Nearest Tenth
A B
33 5.7
34 5.8
35 5.9
36 6
