Answer:
8
Step-by-step explanation:
we can say that AD is congruent to DC
so your equation for x is: 4x - 1 = 2x
solve this to get x = 0.5
plug x into and equation and multiply you answer by 2 to find the hypotenuse of triangle ABC and DEF
4(0.5) - 1 = 1
hypotenuse: 1 x 2 = 2
since we know x is 0.5, plug this into 4x + 1 to find the length of the leg FE,
4(0.5) + 1 = 3
In the diagram, it shows that the legs of triangle are congruent
this means that FE, ED, BA, and BC are all congruent
since we know FE is 3, we know that all the other sides are 3 as well
this means that the perimeter of the triangle is: leg + leg + hypotenuse
so 3 + 3 + 2
the perimeter is 8
Answer:
18% decrease
Step-by-step explanation:
- 7,500 - 6,125 = $1,375
- Set up a proportion:
- Cross multiply, then divide: 1375 × 100 = 137500, 137500 ÷ 7500 = 18 1/3
- 18 1/3% rounded = 18%
- It went down, so it is a decrease
I hope this helps!
Answer: 4 = n
Step-by-step explanation:
5n + 34 = -2(1-7n)
Distribute negative 2 to both 1 and negative 7n. You do this first due to the rules of PEMDAS
5n + 34 = -2 + 14n
Add two to both sides of the equation in order to further isolate (n) in 14.
5n + 36 = 14n
Subtract 5n from both sides of the equation so that the values with (n) are on one side of the equation.
36 = 9n
Divide nine from 36 and 9n in order to isolate (n).
4 = n
This then gives you your final answer.