Answer:
C. 60
Step-by-step explanation:
From triangle ADB,







From triangle ADC,





The perimeter is the distance around the figure.
The perimeter


You take what Mark ran, 46 miles, and you see that Mark ran 31 more miles than Jack, so the equation would be 46-31, which would be 15 miles. So, Jack ran 15 miles.
Answer:
The area of the larger rectangle is 
Step-by-step explanation:
we know that
If two figures are similar then the ratio of its areas is equal to the scale factor squared
and the ratio of its corresponding sides is equal to the scale factor
Let
z-----> the scale factor
x-----> the area of small rectangle
y-----> the area of larger rectangle
so

we have


substitute and solve for y


the least common denominator is 13
5/13 has a higher numerator than 3/13
5/13 > 3/13
hope this helps!
Answer and Step-by-step explanation:
Distribute the 6mn to the 2m and -3n
The answer is:

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