That would be by using a $1 bill, a $5 bill, and a $10 bill. Either the $1 bill or the $5 bill qualify as the "one of which is not the $10 bill". It's a matter of translating the question.
Answer:
a. 5 b. 8 c. 100
Step-by-step explanation:
1)7x+8y=4
2)3x+2y=6
they asked you for the pair which is (x,y)
multiplying equation 2 by 4 we get
3)12x+8y=24
subtracting equation 1 from 2
7x+ 8y=4
(-) 12x+8y=24
-------------------------
-5x =-20
dividng by -5 we get
x = 4
substituting the value of x in either of the 2 equations we get
7x+8y=4-->7(4)+8y=4-->8y=-24--->y=-3
3x+2y=6-->3(4)+2y=6-->12+2y=6-->2y=-6-->y=-3
since we got the same values for y in the two equation are soultion is correct
the pair is in form (x,y)--->(4,-3) which is D
Answer:
Well that whole thing is to the power of 2, so whatever the square root is, it gets multiplied by itself again just to get 111.2, so the solution to that question is 111.2.