-98=7(n-7)
-98=7n-49
7n=-98+49
7n=-49
Therefore n=-7, as 7(-7)=-49.
The ratio of their area is 9/4
<h2>
Explanation:</h2>
We use ratios to compares values. In this exercise, we are comparing the circumference of two circles, which is:
and we want to know what is the ratio of their area. Recall that the circumference of a circle is given by:
If we define:
Then, the ratio of the circumference of two circles is 3:2 is:
The area of a circle is given by:
So the ratio of their area can be found as:
So:
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Answer:
Step-by-step explanation:
On Friday, there were x students at the baseball game.
On Monday, there were 1/2 as many students, that is: x/2 students
On Wednesday, there were 32 fewer students at the game as there were on Friday, that is x - 32.
Tickets are sold for each student. Therefore, the number of tickets sold on all three days will be the same as the number of students that were at the games on the three days.
The number of students present on the three days is:
x + x/2 + x - 32
The number of tickets sold can therefore be represented by