you'd get a decimal value for the rate, just multiply it times 100, to get the percentage format of it.
Answer:
Tanya is 20 years old
Step-by-step explanation:
Let the age of Vera = x years
The age of Linda is twice the age of Vera = 2x years
Tanya is four less than four times the age of Linda = 4(2x)-4 = 8x-4
Total age of Vera, Linda and Tanya is:
x+2x+8x-4
Combine the like terms:
11x-4
But now their total age is two more than nine times the age of Vera:
11x-4 = 9x+2
Solve the expression
Combine the like terms:
11x-9x=2+4
2x=6
Divide both the sides by 2
2x/2 = 6/2
x= 3
Thus the age of Vera is 3 years.
The age of Linda is 2x= 2*3 = 6 years
The age of Tanya is 8x-4 = 8*3 - 4 = 24-4 = 20years....
Answer:
B) 6
Step-by-step explanation:
3(6) + 8 = 26
18 + 8 = 26
26 = 26
I don't know that method they are referring to. Seems pointless.
Typically, you would just set that equation up like:
3n + 8 = 26
- 8 -8
3n = 18
3n/3 = 18/3
n = 6
It's a trick question, you can't measure a dragon, being that they don't exist.
V = 1/3 area of base * height
Area of base = h [(b₁ +b₂)]/2
[(3 + 6) * 4] : 2 =
18 ft²
Volume =
18 * 3 =
54 ft³