Answer:
40k+45m
Step-by-step explanation:
5(8k)=40k + 5(9m)= 45m
Answer:
B. 2x – 1 = 13 and x = 7
Step-by-step explanation:
We are given 4 equations and a solution for each. We have to tell which of the given solution satisfies the given equation.
Option A.
2x -1 = 13 and x = 6
Using this value in the equation, we get:
2(6) -1 = 13
12 - 1 = 13
11 = 13, which is not true. Hence this option is not valid
Option B.
2x - 1 = 13 and x = 7
Using the value in the equation, we get:
2(7) - 1 =13
14 - 1 =13
13 = 13, which is true. Hence this option is valid.
Option C.
2x + 1 =13 and x = 7
Using the value in the equation, we get:
2(7) + 1 = 13
15 = 13, which is not true. So this option is not valid
Option D.
2x - 1 = 13 and x = 11
Using this value in the equation, we get:
2(11) - 1 = 13
21 = 13, which is not true. Hence this option is not valid.
Well, we'd want to calculate the price of 1 bagel first.
To see which is better: divide $3.29 by 6 and then divide $4.15 by 8 and see which has the lowest answer.
The first option rounds off to $0.55 for one bagel. The second option rounds off to $0.52 for one bagel.
The second option is the best.
Answer: -95/42 for exact
-2 11/42 for mixed
Step-by-step explanation:
