Andy is wrapping gifts for his family. he ties 25 inches of ribbon around each gift. which function gives the relationship between the number of gifts (g) and the length of ribbon used (r)? the function representing the relationship between the length of ribbon and the number of gifts is

Step-by-step explanation:

Given :Andy ties 25 inches of ribbon around each gift.

To Find: Which function gives the relationship between the number of gifts (g) and the length of ribbon used (r)?

Solution:

We are given that he ties 25 inches of ribbon around each gift.

Let the number of gifts (g) and the length of ribbon used (r)

Since we are given that 1 gift uses ribbon = 25 inches

So, g gifts uses ribbon = 25g

We are also given that the length of ribbon used (r)

So, equation becomes :

Hence The function representing the relationship between the length of ribbon and the number of gifts is

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

starting with:    

5 + x - 12 = 2x - 7   

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)   

5 - 12 = x - 7 (combine and cancel x's from both sides)   

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)   

0 = x (add numbers together on both sides)       

so in order for the equation to be true, x must be 0.   

trying x = -0.5   

5 + x - 12 = 2x - 7 (original equation)   

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)   

5 + -0.5 - 12 = -1 - 7 (did multiplication)   

-7.5 = -8 (did addition on both sides)       

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.   

trying x = 0   

5 + x - 12 = 2x - 7 (original equation)   

5 + 0 - 12 = 2(0) - 7 (plug in value of x)   

5 + 0 - 12 = 0 - 7 (did multiplication)   

-7 = -7 (did addition on both sides)       

since -7 equals -7, that demonstrates that the value of 0 for x is correct.   

trying x = 1   

5 + x - 12 = 2x - 7 (original equation)   

5 + 1 - 12 = 2(1) - 7 (plug in value of x)   

5 + 1 - 12 = 2 - 7 (did multiplication)   

-6 = -5 (did addition on both sides)       

since -6 is obviously not equal to -5, the value of 1 for x is wrong.