This question is incomplete because the options were not written properly.
Complete Question
On Tuesday Jack bought four boxes. On Wednesday half of all the boxes that he had were destroyed.
Write an expression for how many boxes Jack has now
A. 1/2b+4
B. 1/2+4b
C. 4b−1/2b
D. b+42/2
Answer:
C. 4b−1/2b
Step-by-step explanation:
Let the number of boxes that Jack has be represented by b
In the question, we are told that:
• On Tuesday, Jack bought 4 boxes
Since 1 box = b
4 boxes = 4b
• On Wednesday , half of the boxes where destroyed.
= 1/2 b
The expression for how many boxes Jack has now is given as
Number of boxes Jack bought in Tuesday - half of the boxes destroyers on Wednesday.
This is expressed mathematically as:
4b - 1/2b
X<1/2y y=10(x-1)
is my reading on this.
So the first equation is x is less than one half y
second equation is y is 10 times x less 1
Were there options to choose from?
The answer is x^2 - 4x +4. What I did was set it up as a ratio, FOILing out the two denominators on the left to get (x-5)?/(x^2 - 7x + 10) = (x+1)/1. Next I cross-multiplied to get (x-5)? = (x+1)(x^2 - 7x + 10). Next I FOILed out the right side to get (x-5)? = x^3 - 9x^2 + 24x - 20. Now I have an equation just like 3x=9, for example, where I divide both sides by 3 to find x. Instead, since we have polynomials, we have to use long division. Divide the x^3 term by x-5 and you'll get it.
Answer: 35p+65
Step-by-step explanation: Distribute the 5 to the 7p and 13.
5x7p=35p
5x13=65
Add these together to get 35p+65.
