R=2K which equals 2R=4K
4(R=K+8) or 4R=4K+32
Subtract first equation from second equation.
2R=32 so R=16
Plug into first equation
16=2K so K=8
Now plug both into second equation to check
4R-4K=4(R-K)=4(8)=32 it works
So Roberto is 16 and Katie is 8
(In 4 years R would be 20 and K would be 12 which has a difference of 8)
Round of the number to the nearest whole number then multiply it by itself.
A) 2.85g+3.15c
B)2.85(8.4)+3.15(6)=$42.84
Let a be the bigger number and b the smaller.
So a-b=44
and a^2+b=376376
(44+b)^2+b=376376
b^2+89b -374440=0
Solve for b and you get a. Are you sure it is 376376 not 376?
Answer:
Step-by-step explanation:
First you would do 5 multiplied by the numerator and then make it a mixed number so 5×5 = 25/8 as a mixed number its 3 and 1/8 so it falls between 2 and 4