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.
Answer:
yes
Step-by-step explanation:
396÷ 9= 44
44×60= 2,640 > 2500
6 tens is 60
100+60=
160
Hope this helps.
Answer: I prefer long division because that is the method I understand
Step-by-step explanation:
I prefer long division because that is the method I understand .for example
(x^2+3x+2) ➗ (x+2)
x+1
|````````````````````````
x+2 x^2+3x+2
-(x^2+2x)
````````````````````````````
x+2
- (x+2)
````````````````````````
0
`````````````````````````
therefore (x^2+3x+2) ➗ (x+2)=x+1
So he bought 12 CDs and DVDs (in total), CDs + DVDs = 12
Each cd is 2 and each cd is 3
Total spent = 31 (2*x + 3*y)
I call x cds and y dvds
x+y = 12
2x+3y = 31
Solve for y
Move x to the right with changed sign
y = 12-x (DVDs, you can also write x = 12-y)
And substitute 12-y in the equation
2x + 3(12-x) = 31
2x + 36 - 3x = 31
2x - 3x = 31 - 36
-x = -5
x = 5 (CDs)
To find DVDs let's rewrite y = 12-x
y = 12-5 = 7 (DVDs)
