Answer:
Answer is in the explanation.
Explanation:
Let's make a system of equations.
5x+10y=550
x+y=80
Now let's use elimination
-5x-5y=-400
5x+10y=550
__________
5y=150
y=30
Then subsitute 30 in for y to find x. This will leave you with x=50. You will have 50 $5 bills and 30 $10 bills. You can check by subsituting x for 50 and y for 30 in both equations to show why it is correct. Eliminating makes it easier to solve the system of equations.
Answer:
Semi-conservative.
Explanation:
The resulting double helix is composed of both an old strand and a new strand.
I think is d,,,,,,,,,,,,,,,,
The U. S House of Representatives voted to outlaw a specific type of biological experimental procedures. Proponents of the bill called certain experiments ghoulish, immoral and dangerous, but others argued that it was immoral to prevent research that might ultimately help people with incurable ailments like Alzheimer's disease, diabetes and spinal cord injuries. In fact, advances in this area are consistently made overseas, because opposition to such research is so strong in this country. In this example, research in the fields of cloning and stem cell harvesting are being hindered in the United States.