Answer:
It is sometimes true
Step-by-step explanation:
Fractions are positive rational numbers, and 2*1/2 is 1, which is less than 2. Here's a picture that might help.
Answer:
2x+3y=170.......1
1x+5y=225.......2
multiplying equation 2 by 2 and subtracting eq.1 &2
2x+3y-2x-10x=170-225
-7x=-55
x=55/7
55/7+5y=225
5y=225-55/7
y=1520/(7×5)=304/7
The solutions for the given equation
are x = -1 and x = 3/4. Using the quadratic formula, the solutions for the given equation are calculated.
<h3>What is the quadratic formula?</h3>
The formula which is used to calculate the roots(solutions) of the quadratic equation in the form
is
x = [- b ±
]/2a
<h3>Calculation:</h3>
The given equation is 
In comparison with the standard form of quadratic equation
,
we get, a = 4, b = 1 and c = -3
So, solving the given equation using the quadratic formula,
x = [- b ±
]/2a
= [- 1 ±
]/2(4)
= [-1 ±
]/8
= (-1 ± 7)/8
Thus, x = (-1 + 7)/8 = 3/4 and x = (-1-7)/8 = -8/8 = -1
Therefore, the solutions of the given equation are x = -1 and x = 3/4.
Learn more about solving quadratic equations here:
brainly.com/question/1214333
#SPJ4
Calculate the mean, median, and mode for the set 7, 9, 8, 8, 10, 9, 8, 7, 8, 6, 9, 5, 6, 8, 9, 7, 7, 8, 10, 8 please answer asap
tatiyna
Step-by-step explanation:
Mean (Average):7.89474. Median (Middle):8. Mode (Most Common):8