Answer:
C ( 2.8 x 13 = 0.7 x 52)
Step-by-step explanation:
2.8 x 13 = 36.4
0.7 x 52 = 36.4
36.4 = 36.4
255 km because 85 x 3 is 255
<em>Answer:</em>
<em>$ 60</em>
<em>Step-by-step explanation:</em>
<em>Hi there !</em>
<em>100% ............ $80</em>
<em>75% ................$ x </em>
<em>x = 75×80/100</em>
<em>= 6000/100</em>
<em>= $ 60</em>
<em>Good luck ! </em>
The answer is
![3 {x}^{2} - 19x - 14](https://tex.z-dn.net/?f=3%20%7Bx%7D%5E%7B2%7D%20%20-%2019x%20-%2014)
first you must multiply or use the FOIL method (First, Outer, Inner, Last)
First you multiply the first terms
![(3x)(x)](https://tex.z-dn.net/?f=%283x%29%28x%29)
this gives you 3x^2, then you multiple the outer terms
![( - 7)(3x)](https://tex.z-dn.net/?f=%20%28%20-%207%29%283x%29)
this gives you -21x, then you multiply the inner terms
![(2)(x)](https://tex.z-dn.net/?f=%282%29%28x%29)
that gives you 2x, finally you multiply the last terms
![(2)( - 7)](https://tex.z-dn.net/?f=%282%29%28%20-%207%29)
that gives you 14, now you combine like terms
![- 21x + 2x = - 19x](https://tex.z-dn.net/?f=%20-%2021x%20%2B%202x%20%3D%20%20-%2019x)
now you put all the terms together and end up with your solution
Three times (3 times something) the difference of x and 2 (2-x) is greater than (>) -21 (-21)
3 times (2-x)>-21
3(2-x)>-21
distrobite using distributiver poerpoty
a(b+c)=ab+ac
3(2-x)=6+(-3x)=6-3x
6-3x>-21
add 3x to both sides
6>-21+3x
add 21 to both sides
27>3x
divide both sides by 3
9>x
x<9
so x= any number below 9 not including 9