Answer:
13 pencils.
Step-by-step explanation:
Let x be the pens and y be the pencils
Given:
Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95.
Total pens and pencils is 22
So, 
----------------(1)
And he bought all utensils for $11.95. and each pen for 75 cents and pencils for 40 cents.
------------(2)
solve equation 1 and equation 2 for x and y.
From equation 1.
----------------(3)
put y value in equation 2.
Now substitute x value in equation 3.
So, he buy 13 pencils.
G/L=1000*g/mL, since 1 mL = 1/1000 of a litre.
<span>Therefore, 150g/L=150 000 g/mL.</span>
Rational numbers are numbers which can be written as a fraction (the formula is p/q). They don't include roots we can't solve in order to get a whole number and pi.
A. 776, pi, 25.209, √9 ---> NO (because of pi)
B. 726, 7/34, 20.209, √9 ---> YES
C. √3, 7/39, 20.3, √9 ---> NO (because of √3)
D. 726, 7/34, 20.209, √5 ---> NO (because of √5
Note that √9 = 3, so it IS a rational number.
<u>ANSWER: </u>
If two points on line l above have coordinates (0, A) and (2, −3), then the value of A is -1
<u>SOLUTION:</u>
Given, two points on line l have coordinates (0, A) and (2, −3),
And the slope of the line is A,
We need to find a value.
We know that, slope of a line on which (x1, y1) and (x2, y2) are two points is given by
Here,in our problem,
now, substitute the values in formula we get
2A = -3 –A
2A+ A = -3
3A = -3
A = -1
Hence, the value of A is -1.
Value of 3⁰ × 3⁴ = 1 × 81
<h2>= 81</h2>
