Answer:
Step-by-step explanation:
Apply Exponent rule: 
Apply exponent rule: 
2 1/3 + 1 3/4 = 7/3 + 7/4 = (28+21)/12 = 49/12 = 4 1/12. they are 1/12 cups short of having enough
Answer:the company bought 12 computers and 4 printers.
Step-by-step explanation:
Let x represent the number of computers that the company bought.
Let y represent the number of printers that the company bought.
The company buys a total of 16 machines. It means that
x + y = 16
Each computer costs $550 and each printer costs $390. If the company spends $8160 for all the computers and printers that was bought, it means that
550x + 390y = 8160 - - - - - - - - - - 1
Substituting x = 16 - y into equation 1, it becomes
550(16 - y) + 390y = 8160
8800 - 550y + 390y = 8160
- 550y + 390y = 8160 - 8800
- 160y = - 640
y = - 640/ - 160
y = 4
Substituting y = 4 into x = 16 - y, it becomes
x = 16 - 4
x = 12
B) y=2x+7
lines with the same slope are parallel lines
I think its not a right triangle because of the cm.
