The perimeter of a triangle is 84. The longest side is 7 meters less than twice the length of the shortest side, x. The middle s
ide is 7 meters longer than the shortest side. What is the length of each side?
1 answer:
Perimeter = Side + Side + Side
Side 1 = x
Side 2 = x + 7
Side 3 = 2x-7
Plug into the equation:
84 = x + (x + 7) + (2x-7)
84 = x + x + 7 + 2x - 7
Combine like terms:
84 = 4x
Divide by 4 and solve for x:
21 = x
Side 1 = 21
Side 2 = 28
21+7=28
Side 3 = 35
21(2) - 7 = 42 - 7 = 35
You might be interested in
Answer:
79 cents per song
Step-by-step explanation:
you divide 1580 by 20 and get 79 and then re-add the decimal place in to get .79
<span>solution to -3/m=
</span>-3/m<21
m>0
m<-1/7
Answer:
the absolute value of 1 is 1738 yuh
Step-by-step explanation:
False because they don't have the same length and shape you know they may be triangle but the their length are different.
Answer:
Use pemdas
Step-by-step explanation:
Paranthese, e, multiplacation, division, addition, subtraction
