X = 124. Since the mean (average) is calculated by adding all the sums up, then
one divides by the quantity of numbers that are present. So take the mean multiple by the number 5, which is the quantity of numbers present. You get 650 then subtract 104, 137, 154, and 131 and your left with the numeric value of x being 124.
Answer:
x = 9
Step-by-step explanation:
1. x - 2 * 5 = 35
2. 5 * 7 = 35
3. 9 - 2 = 7
4. 9 - 2 * 5 = 35
Find least common multiple of 8 and 10.
The answer is 40.
7/8=x/40. We had to multiply 8 by 5 to get 40.
Whatever you do to denominator you must do to numerator. Multiply 7 and 5 to get 35.
Now we have 7/8 is equal to 35/40.
Next, for the 9/10 part. We multiplied 10 and 4 to get 40 so multiply the numerator by 4 as well and you get 36.
Now we have 9/10 is equal to 36/40
The problem is now 35/40 and 36/40
35/40 < 36/40
Which is the same as
7/8 < 9/10
Don’t you just love inequalities? Of course I can only hear you saying “not really…inequalities stink!” Well I know you may not like inequalities but you need to know how to work with them. All right let me stress some points:
* the solution to an inequality is more than a single number; inequalities have solution sets (many/infinite number of solutions). As an example lets consider the inequality x > 5 what can the value of x be? i.e. what numbers are greater than 5? clearly an infinite amount of numbers are greater than 5 so we need to express the solutions to inequalities in a different way other than writing out all the numbers greater than 5 – that would take a lot of paper and with global warming….you get the idea. So to deal with this little issue we graph the solution of an inequality on a number line.
other important points:
* we simplify inequalities using the same steps as solving equations
* when dividing/multiplying both sides of an inequality by a negative number you need to reverse the inequality symbol; example > would turn into < .
* when graphing your solution <, > symbols use open circles; <=, >= symbols fill in the circle.
* make sure you can solve linear equations before taking on inequalities- good luck and may the force be with you!!
the hint tells you s is sqrt(a)
the question tells you a = 570025
so side = sqrt(570025)
plug that into your calculator to get:
755 feet