Answer:
$200
Step-by-step explanation:
Let X be the amount of Christmas money he had at the beginning.
He put 65% of X in the bank. This is 0.65x
He has $70 left which is equal to 0.35x
We need to write an equation to find the value of x.
70 = 0.35x
Divide by 0.35 to find the value of x.
70/0.35 = 0.35x/0.35
200 = x
He received $200 for Christmas.
You Answer Is 32X21
4x7=28. 8x3=24
28x24=672
32x21=672
Answer:
the center is (-2,6)
the radius is 6
Step-by-step explanation:
you would have to get this equation in standard form (x-h)^2 + (y-k)^2 = r^2
the width is equal to a cm.
the length is twice the width, therefore the length is equal to 2a cm.
the height is twice the length, therefore the height is equal to 4a cm.
the volume is equal to width times length times height which is equal to a * 2a * 4a which is equal to 8a^3 cubic cm.
For Example:
let a = 5
then 2a = 10
then 4a = 20
a is the width
2a is the length
4a is the height.
the length is twice the width.
the height is twice the length
the volume is equal to a * 2a * 4a which is equal to 8a^3 cubic cm.
this is equivalent to 8 * 5^3 which is equal to 8 * 125 which is equal to 1000 cubic cm.
5 * 10 * 20 = 50 * 20 = 1000 cubic cm.
formula works and so is considered to be good.
the volume is equal to 8a^3 cubic cm.
<u>* hope you understand*</u>
The expression must contain x-terms and constants. A constant is a variable that never changes, which in this case would be x. These terms must combine to make 7x in total, and the whole sum should add up to 13.
We can put this into equation form like this:
x + 3x + 3x = 13
x + 6x = 13
7x = 13
It can be in any other order as well, as long as it adds up to 7x like the problem states. If you wanted to, it could also look like this: (2x + 5x = 13) = 7x = 13.
If I am understanding your problem right, I believe this is correct. I hope it helps!