D. Warm air rises and cool air sinks
Answer:
Cristiano will have enough money to buy bike in 9 weeks.
Step-by-step explanation:
Given:
Cost of the bike = $189
Money saved = $99
Money saving each week = $10
We need to find the number of weeks will he have money to buy bike.
Solution:
Let the number of weeks be 'x'.
Now we can say that;
Money saved plus money saving each week multiplied by number of weeks is equal to cost of the bike.
framing in equation form we get;

Subtracting both side by 99 using subtraction property of equality we get;

Dividing both side by 10 using division property of equality we get;

Hence Cristiano will have enough money to buy bike in 9 weeks.
Answer:
which is the first president??
The percent of change=the amount of change/the starting number
in this case, the amount of change is 36-6=30
the starting number is 6
the percent of change is therefore: 30/6=5=500%
Well, think about it
1/4 of the 20 oz bottle is 5 ounces
So you gave 5 ounces to a friend
Then, you took 3 ounces for yourself
So 5 ounces+ 3 ounces= 8 ounces
You used 8 ounces
So 20-8=12
The fraction would be 12/20
And if you simliply it, you get 3/5
You have 3/5 oz of juice or soda left on that bottle