So since we are trying to find the price for 1 song, you will be dividing the price by the song. Divide 12 by 15 and divide 9 by 10:
![\frac{\$12}{15}=\$ 0.80\ per\ song\\ \frac{\$9}{10}=\$ 0.90\ per\ song](https://tex.z-dn.net/?f=%20%5Cfrac%7B%5C%2412%7D%7B15%7D%3D%5C%24%200.80%5C%20per%5C%20song%5C%5C%20%5Cfrac%7B%5C%249%7D%7B10%7D%3D%5C%24%200.90%5C%20per%5C%20song%20)
<u>Since 80 cents per song is cheaper than 90 cents, A is cheaper than B.</u>
Answer:
F. y = 9.5x + 22.5
Step-by-step explanation:
let the number of shirts be x
For every shirt he pays $9.50 and $22.5 is the additional price
Answer:
Squares are the numbers, generated after multiplying a value by itself. Whereas square root of a number is value which on getting multiplied by itself gives the original value.
Step-by-step explanation:
Hence, both are vice-versa methods. For example, the square of 2 is 4 and the square root of 4 is 2.
Answer:
x=-5, 7 are the excluded values
Step-by-step explanation:
Excluded values are the values that makes the denominator 0
To find excluded values we set the denominator =0 and solve for x
![x^2 - 2x - 35 =0](https://tex.z-dn.net/?f=x%5E2%20-%202x%20-%2035%20%3D0)
Factor x^2 - 2x - 35
(x-7)(x+5) =0
We set each factor =0 and solve for x
x-7 =0 so x= 7
x+5 =0 so x= -5
x=7, x=-5 makes the denominator 0
So x=7 , x=-5 are the excluded values
Both the angles are interior angles on the same side of transversal , which means their sum will be equal to 180° .
So :-
![9x + 1 + 11x - 1 = 180](https://tex.z-dn.net/?f=9x%20%2B%201%20%20%2B%2011x%20-%201%20%3D%20180)
![(9x + 11x) + (1 + - 1) = 180](https://tex.z-dn.net/?f=%289x%20%2B%2011x%29%20%2B%20%281%20%2B%20%20-%201%29%20%3D%20180)
![20x + 0 = 180](https://tex.z-dn.net/?f=20x%20%2B%200%20%3D%20180)
![20x = 180](https://tex.z-dn.net/?f=20x%20%3D%20180)
![x = \frac{180}{20}](https://tex.z-dn.net/?f=x%20%3D%20%20%20%5Cfrac%7B180%7D%7B20%7D%20)
![x = 9](https://tex.z-dn.net/?f=x%20%3D%209)
Which means :-
angle 9x + 1 :-
= 9 × 9 + 1
= 81 + 1
= 82°
angle 11x -1 :-
= 11 × 9 - 1
= 99 - 1
= 98°
Therefore , the value of x = 9 .