Answer:
D
Step-by-step explanation:
a is false since x could be 0.
b is easy to check, just plug numbers in, and we can see that it's false(you would get 0+0=1 and -0-0=-1 once plugged in)
c is also easy to check, just plot the line or simplify the first equation. since (2x+2y)/2=4/2 is also x+y=2, the second equation is also x+y=2, so it must have infinitely many solutions.
d must be true due to process of elimination but let's check to make sure.
7y=14x, divide both sides by 7 to get y=2x and since they're the same equation it must mean that they have infinitly many solutions and we can see that it is correct
Answer:
A
Step-by-step explanation:
Answer: A large cube consists of smaller cubes. The more small cubes, the greater the large cube.
Step-by-step explanation:
Answer:
I can't see the question
Step-by-step explanation:
sorry
maybe try asking the same question again
The answer is 10 pounds.
I set up a proportion of 10 / 0.01 = 10000 / x.
Cross-multiply to get 10x = 10000(0.01). Simplify to get 10x = 100. Divide by 10 to isolate the variable.
x = 10. 10000 samples would weigh 10 pounds.