Answer:
1800°
Step-by-step explanation:
(12-2)x180 = 1800
Alex spent 25% first, so he has now 75%. Then, he spent another 25% of that remaining money, so 25% of 75% is 56.25%. He has $9 left, which means $9 is 56.25% of the money he began with.
Set up a proportion:
9/x = 56.25/100 (9 dollars out of starting money equals to 56.25 per 100)
cross multiply 9 and 100, 56.25 and x
900=56.25x
Isolate the variable by dividing each side by 56.25
x=$16
1/4 inch = 250 miles
1 inch = 250x4 = 1000 miles
3 inches = 1000x3 = 3000 miles
answer: 3000 miles
It’s addition. Subtracting is how much less