Answer:
3x3-x2-5x+3
Step-by-step explanation:
Open brackets
Answer:
5) the answer is 2 hours
Step-by-step explanation:
1 hour: 35% is destroyed
35% added 2 times (2 hours) equals 70%
Hope you are having a great day!
STEP BY STEP: a+b(x)=6
we know that
Perimeter of a triangle is equal to
P=a+b+c
where
a,b and c are the length sides of the triangle
<u>Find the perimeter of the triangles</u>
<u>Triangle N 1</u>
P=(x-2)+(x)+(3x+1)-------> P=5x-1
<u>Triangle N 2</u>
P=(2x-5)+(x+4)+(6x-7)------> P=9x-8
equate the perimeters
5x-1=9x-8--------> 9x-5x=-1+8-------> 4x=7
x=7/4------> x=1.75
therefore
the answer is
x=1.75
14 is the answer because 36-22 is 14