Answer:
91
Step-by-step explanation:
8x13=104-13=91 I have done this problem before on big ideas and it is either this or 87
<u>The reflection of any point across the x-axis</u>:
⇒ means that x-coordinate remains the same
⇒ <em>but</em> the y-coordinate is <em>multiplied by '-1'</em>
<em />
<u>In this case</u>:
⇒ (50,25) <em>becomes</em> (50,-25)
<u>Answer: (50,-25)</u>
<u></u>
Hope that helps!
#LearnwithBrainly
Answer:
47 minutes
Step-by-step explanation:
Elapsed time is the time spent on something. In this case 47 minutes were spent reading the book.
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)
