Answer:
Step-by-step explanation:
7. Let the price of book be x
:- 8x + 17 = 129
8x = 129 - 17
8x = 112
x = 112/8
x = $14
Each book cost $14
8. Let the number of hours be x
9x + 15 = 87
9x = 87 - 15
9x = 72
x = 72/9
x = 8hrs
He paid for 8hours
9. Let the numbers be x, x +2, x +4,
So. x + x + 2 + x + 4 = 168
3x + 6 = 168
3x = 168 - 6
3x = 162
x = 162/3
x = 54
The smallest number is 54
10. Let the number of books be x
So, x/2 + 6 = 18
x/2 = 18 - 6
x/2 = 12
x = 12 ×2
x = 24
So she has 24 book's before
The solution to the given equation is x > 5.3
<h3>Solving linear inequality</h3>
Inequality are expression that are separated by an equal sign.
Given the inequality;
16(1/4 x - 1/2) > 24- 2x
Expand
4x - 8 > 24 -2x
Collect like terms
4x + 2x > 24 + 8
6x > 32
x > 32/6
x > 5.3
Hence the solution to the given equation is x > 5.3
Learn more on inequality here: brainly.com/question/24372553
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Answer:
Y= 60 seconds divided by X
This is exponential, if x were 1 , Y' d. be 60 seconds. X=2, Y= 60/2 = 30.
Step-by-step explanation:
LIKE UR MEME
Answer:
I think the answer is... C. No Solution because if you plug in those points for x & y, it has no solution... It is false... so yeah... I'm really really sorry if I'm wrong...
Step-by-step explanation:
x -2y = 4 - 3x + 6y = 12
-2 - 2(4) = 4 - 3(-2) + 6(4) = 12
-2 - 8 = 4 6 + 24 = 12
-10 = 4 30 = 12
x -2y = 4 - 3x + 6y = 12
0 - 2(-2) = 4 - 3(0) + 6(-2) = 12
0 + 4 = 4 0 - 12 = 12
4 = 4 - 12 = 12
Answer:
4 min
Step-by-step explanation:
