Using distributive property, we get:
3x-9=0
3x=9
x=3
So, x=3. Now that was easy, huh? :)
A. 100/20
The distance in meters should be divided by the time in seconds to get the value of the distance in meters travelled in one second.
Answer:
I'm not sure if your question was to find the number of girls, but if it was, here's the answer
Step-by-step explanation:
Total number of students= 572
number of boys= 5
So, number of girls= 572-5 =567 (ans)
Answer:
Jack earned $2560 this summer.
Step-by-step explanation:
Given:
Money given away = $256
Percentile of money give away = 10%
We need to find the total money he earned this summer.
Solution:
Let the total money he earned this summer be 'x'.
So we can say that;
Money given away is equal to Percentile of money give away multiplied by total money he earned this summer and then divided by 100.
framing in equation form we get;

Now multiplying both side by 10 we get;

Hence Jack earned $2560 this summer.