Answer:
a) x = 7.5
b) x = 1
Step-by-step explanation:
a) 
= x + 7
4x - 1 = 2(x + 7)
4x - 1 = 2x + 14
4x - 2x = 14 + 1
2x = 15
<u>x = 7.5</u>
b) 3x + 2 = 
3(3x + 2) = 2x + 13
9x + 6 = 2x + 13
9x - 2x = 13 - 6
7x = 7
<u>x = 1</u>
REMEMBER: When moving numbers or symbols from one side of an equation to another, you must reverse the mathematical function (e.g. × becomes a ÷, and + becomes a -). A fraction is always a ÷, so when you move the denominator (bottom number), it becomes a ×.
Answer:
the second one
and i'm truly sorry if i gave you the wrong answer
Step-by-step explanation:
Answer:
1}option D is your answer
2} option B is ur answer
Step-by-step explanation:
because 0.125 is greater than 0.120 and it has been correctly compared in the above given picture
Answer:
Option (4)
Step-by-step explanation:
Let x = ![\sqrt[4]{7}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B7%7D)
![\sqrt[4]{7}\times \sqrt[4]{7}\times \sqrt[4]{7}\times \sqrt[4]{7}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B7%7D%5Ctimes%20%5Csqrt%5B4%5D%7B7%7D%5Ctimes%20%5Csqrt%5B4%5D%7B7%7D%5Ctimes%20%5Csqrt%5B4%5D%7B7%7D)
= (x)(x)(x)(x)
= 
= x⁴
Now we substitute the value x =
x⁴ = ![(\sqrt[4]{7})^4](https://tex.z-dn.net/?f=%28%5Csqrt%5B4%5D%7B7%7D%29%5E4)
x⁴ = 7
Therefore, Option (4) will be the answer.
Answer:
the number of miles is 160
Step-by-step explanation:
The computation is given below:
Let us assume the miles be x
For company A
y = $100 + $0.40x
And, for company B
y = $20 + $0.90x
In order to find out the number of miles, the rental cost of the company A should be less than the company B rental cost
SO,
$20 + $0.90x > $100 + $0.40x
Subtract $20 from both sides
0.90x > 80 + 0.40x
Now subtract 0.40x from both sides
0.50x >80
x>160
So the number of miles is 160
