Red ribbon
=Blue ribbon ×5
=11 m
<em>So</em><em>,</em><em> </em><em>changes</em><em> </em><em>the</em><em> </em><em><u>times</u></em><em><u> </u></em><em><u>symbol</u></em><em> </em><em>into</em><em> </em><em><u>divide</u></em>
11m ÷ 5
=2.2m
Check!
Red ribbon=Blue ribbon × 5
11m=Blue ribbon × 5
11m÷5=Blue ribbon
2.2m=Blue ribbon
Blue ribbon=2.2m
Answers
2.2m
Like when adding/subtracting fractions at any other time, you need a common denominator, in this case (x-1)(x+1)=x^2-1 so:
(2(x+1)+3(x-1))/(x^2-1)=4 multiply both sides by (x^2-1)
2x+2+3x-3=4x^2-4 combine like terms on left
5x-1=4x^2-4 subtract (5x-1) from both sides
4x^2-5x-3=0 using the quadratic formula for expediency
x=(5±√73)/8
x≈-0.443 and 1.693
Answer:
91.44
Step-by-step explanation:
12 times 3 is 36
so 30.48 times 3 is 91.44
