Answer:
7n + 14 and 7(n + 2)
Step-by-step explanation:
We know that since our triangle is isosceles, then two of the sides are the same. Given in the problem, we know that these two congruent sides are both 2n + 7. We also know the third side is 3n.
Perimeter is essentially just the sum of the side lengths of the figure. We simply need to add 2n + 7, 2n + 7, and 3n together:
P = 2n + 7 + 2n + 7 + 3n
Combine like terms:
2n + 2n + 3n + 7 + 7
7n + 14
That's one way we can write it. Another way is to factor out the 7:
7n + 14 = 7(7n/7 + 14/7) = 7(n + 2)
Thus, our two expressions are: 7n + 14 and 7(n + 2).
<em>~ an aesthetics lover</em>
2+3=5
10.00/5=2
2 per unit
2 unit:3unit
2 times 2=4
2 times 3=6
2:3
4:6
Answer:
About 18 students have cats at home and about 30 do not have cats at home.
My Explanation for that is you take 48 multiply it 3 then divide 8 and that should give you 18.
Answer:
3.75 or 15/4
Step-by-step explanation:
8x+5=35
Subtract 5 from the left side to cancel it out, do the same thing to 35.
8x=30
Divide 8x by 8 to get x alone, do the same thing to 30.
x=3.75, or once you simplify 30/8, you get 15/4.
Answer:
(13.4,-4.2)
Step-by-step explanation:
The given system has equations:
Multiply the top equation by 9 and
Multiply the second equation by 5:
Add the new equations.
Put this into the first equation to get: