Answer:
2n +14 = 30 I can use inverse operations and solve for n.
Step-by-step explanation:
twice means 2 so twice a number,n, means 2 times n thus 2n.
sum means add so, 2n + 14
is means equal so 2n + 14 = 30
If you solve it you will find n = 8
Answer:
5 weeks
Step-by-step explanation:
We are given the following information;
- Price of gas in Bakersville as $2.10 per gallon
(increment per week is $0.20)
- Price of gas in Springfield as $2.60 per gallon
(Increment per week as $0.10 )
We are required to determine the number of weeks it will take for the prices to be the same in the two cities.
Assuming it will take n weeks for the prices to be the same, then
New price in Bakersville = $2.10 + $0.20n
New price in Spring field = $2.60 + $0.10n
Thus;
$2.10 + $0.20n = $2.60 + $0.10n
combining the like terms
0.10 n = 0.50
n = 5
= 5 weeks
Therefore, it will take 5 weeks for the prices to be the same both cities
Hey I think the answer to your problem is eighter c or d! I think the real answer is: biker 1 travels 40 miles in 4 hours from the graph so it travels 10 miles per hour and 30 miles for 3 hours. biker 2 travels 45 miles in 5 hours from the graph so it travels 9 miles per hour and 27 miles for 3 hours. Therefore, third biker is slower than both of them. it is A.