<span>rate = dist/time so 406/7=58 hope this help
</span>
12. 37, 370, 10^2
13. 20.4, 10^2, 2040
15. 1000*1.75=1750
Hope it helped!
Answer:
A and D
Step-by-step explanation:
for infinitely many solutions, ratio of coefficients should be equal.
since ratio = 1/4 so they will have infinitely many solutions.
Answer:
C. No solution
Step-by-step explanation:
System of Equations:
A) 
B) 
Simplifying and rearranging equation A.
Dividing each term by 3 (common factor for each term) in equation A.


Subtracting both sides by 


Adding 7 both sides.

Adding the above equation to equation B.
+ 
We have
which is not true.
Hence the system has no solution. (Answer)
Use MathPapa for a faster answer hehe