We can also say this in another way ... (8% of what number is 12?)
let a be the number of which 8 % is 12 ....
<span>8/100 x a =12 </span>
<span>a=12 x 100/8 </span>
<span>a=(6/4) x 100 </span>
<span>a=(3/2) X 100
a = 150 </span>
<span>now if u want to check your answer.. substitute the value of a .....</span>
<span>(8/100) x 150=12 ....
Hope it helps !!!</span>
To solve this problem we first call x = number of action figures, y = number of dolles. A system of two equations with two unknowns must be made to describe the problem. The system is the following:
(x + 1) + y = 13
1/2 * x = y.
Then solving the system we have that x = 8 and y = 4.
Since we know that the number of action figures is twice as many dolls plus one, then x = 8 + 1 = 9.
Thus,
dollos = 4
action figures = 9
Answer:
c. 12%
Step-by-step explanation:
40% of the beads are spears, you can convert it to 0.4
30% of the spheres are blue, you can convert it to 0.3
=> probability choosing blue sphere = (0.4 * 0.3)*100(%) = 12%
My explaination may not really clear but the answer is correct. Hope this help!
Let the width be "x" cm.
Then the length is "x+12" cm
And the area = x(x+12) = x^2+12x cm^2
----------------------------
Change the dimensions:
width = "x-2" cm
length = "x+10" cm
New area = (x-2)(x+10) = x^2 + 8x - 20 cm^2
------------------
Equations :
Old area - New area = 108 cm^2
x^2+12x -(x^2 + 8x - 20) = 108
4x + 20 = 108
4x = 88
x = 22 cm (original width)
x+12 = 24 cm (original length)
First, add -7 to both sides of the equation:
Dividing by 9 gets us:
The answer is x = 0.
