Answer: Total cost is $1.75
Explanation:
Since we have given that
Number of postcards bought by Doug's family= 7
Cost of each postcard including tax = $0.25
Total cost is given by
Now, we want to show this in number line :
On the number line put all the number with a difference of 0.25 and run the number line seven times and we get the answer.
Each step is of length 0.25 and there are 7 jumps to reach required answer.
So, after 7 jumps we reach at 1.75 which is the required answer.
Hence total cost is $1.75
Answer:
(1, 2)
Step-by-step explanation:
Subtract the second equation from the first:
(y) -(y) = (6x -4) -(-x +3)
0 = 7x -7 . . . . . simplify
0 = x - 1 . . . . . . divide by 7
1 = x . . . . . . . . . add 1
y = -1 +3 = 2 . . . substitute into the second equation
The solution is (x, y) = (1, 2).
The additive inverse of 7/2 would be -7/2 (option B) Since its. opposite !
A)is the additive inverse of C) ; C) is the additive inverse of A) (not your answer)
B. is the additive inverse for this problem (7/2) so thats how we found that this is your answer (answer)
D is the same thing for the problem (7/2) (not your answer)
7/2 isnt the additive inverse for 7/2 because they are the SAME not the opposite.
+ = - (Positive = negative)
- = + (negative = positive)
The independent variable is your input (x-value) and the dependent variable (y-value) depends on what the input is.
y = 10x
y is total money earned
x = number of lawns mowed
The first answer listed
