ishaan could literally be any age because we still dont know christophers age
To find x, you first want to start by adding the 5 to both sides. you should then get 2x=22. then, to get x by itself, divide 2x and 22 by 2. the answer should then be x=11. to check, substitute the x to the 11, and it should look like 2(11)-5=17. 2 times 11 is 22, and if you subtract 5 from 22 you DO get 17, so therefore x is 11.
Answer:
Weighing Scale
Step-by-step explanation:
It measures weight.
Let x = number of quarters
since she has twice as many dimes as quarters,
Let 2x = number of dimes
The total value in $ is
0.25x + (0.10)(2x)
And it was said that when the numbers of quarters and dimes are interchanged, she would have $1.20 more than the original. So,
(New Value) = (Original Value) + $1.20
0.25(2x) + 0.10x = 0.25x + (0.10)(2x) + 1.20
Solving for x,
0.5x + 0.1x = 0.25x + 0.2x + 1.20
0.6x = 0.45x + 1.20
0.6x - 0.45x = 1.20
0.15x = 1.20
x = 1.20/0.15
x = 8 quarters
2x = 16 dimes
Answer:
Value of boat = $23,400
Loss of value by boat per year = 8%
To find: - Monthly percent decrease in value of boat.
Solution: - Decrease of value per year = 8% of $23,400 = $1,872. Monthly decrease in value = $1,872/12 = $156. Monthly percentage decrease = ($156/$23,400) * 100 = 0.6667 or 0.67 (rounded to nearest hundredth)
Step-by-step explanation: