Katie types out a computer code as part of her study assignment. She has installed software that helps her run the program and s
ee its output. Which hardware component of the computer carries out the instructions in the program written by Katie? a
motherboard
b
RAM
c
keyboard
d
CPU
The CPU is like the brain of the computer, while the motherboard is like the spine. The CPU carries out the instructions. The RAM is like the short-term memory, so you can carry out tasks quicker. The keyboard - well, the keyboard simply types out the command but does not carry it out.
The equations would be: x=18+3y x+y=54 (substitute x in the second equation with 18+3y) 18+3y+y=54 (combine like terms and solve for y) y=9 (plug y into the second equation to find x) x+9=54 x=45
