"Starting with three, every consecutive line has 2 less than twice the previous line."
this statement means that
your staring line has 3 marbles. You multiply the 3 marblesby 2 so
3x2=6
And then you minus it by 2
6-2=4
which means that you'll get 4 marbles for the next line.
So to get your 6th line, you count how many marbles is on the 5th line but since your diagram doesn't have the 5th line you have to figure out the 5th line by counting how.many marbles is on the 4th line.
4th line = 10 marbles
10×2=20
20-2=18
5th line = 18
18×2=36
36-2=34
So the 6th line has 34 marbles.
10/15 =6/9
6*15=90
90/9=10, this is how I found 10,
also, is you simplify both, you get 2/3
$480
First convert 8% into a decimal
8%/100=0.08
Multiply the decimal by his sales
0.08*6000
480
He made $480 in commission last month
Hope this helped! :)
Answer:
12
Step-by-step explanation:
12 beacuse We assume, that the number 48 is 100% - because it's the output value of the task.
x is the value we are looking for
Now we have two simple equations:
1) 48=100%
2) x=25%
48/x=100%/25%
Now we just have to solve the simple equation, and we will get the solution we are looking for.
Solution for what is 25% of 48
48/x=100/25
(48/x)*x=(100/25)*x - we multiply both sides of the equation by x
48=4*x - we divide both sides of the equation by (4) to get x
48/4=x
12=x
x=12
now we have:
25% of 48=12
Area = 1/2 Base x Height
Let x= Base, then x+3 = height
35 = 1/2(x)(x+3)
35 = 1/2(x2) + 3/2(x)
70 = x2 + 3x
x2 + 3x - 70 =0
(x+10)(x-7) = 0, x= -10 or 7 (-1 is impossible) so base = 7, height = 10
