Answer:
100,000 miles
Step-by-step explanation:
Cost of Car A = $10,000
Cost of Car B = $11,000
Let the mile at which the cost are the same =x
Car A costs $0.12 per mile to maintain i.e. $0.12x for x miles
Car B costs $0.11 per mile to maintain i.e. $0.11x for x miles
Total Cost for Car A=10000+0.12x
Total Cost for Car B=11000+0.11x
If their costs are the same at x miles
10000+0.12x=11000+0.11x
0.12x-0.11x=11000-10000
0.01x=1000
x=1000/0.01=100,000
After 100,000 miles their total cost will be the same
An acute triangle is a triangle with<span> all three angles</span>acute<span> (less than 90°). An </span>obtuse triangle<span> is one with one </span>obtuse<span> angle (greater than 90°) and two </span>acute<span>angles. Since a </span>triangle's<span> angles must sum to 180°, no</span>triangle<span> can have more than one </span>obtuse<span> angle.</span>
Answer:
Step-by-step explanation:
I think you mean 3(x+8)², not 3(x+8)2. If you cannot type ², use ^ to mark the exponent: 3(x+8)^2.
3(x+8)² + 8 = 83
3(x+8)² = 75
(x+8)² = 25
x+8 = ±√25
x+8 = ±5
x = -8 ± 5 = -3, -13
Answer:
(-4,8)
Step-by-step explanation:
x + 4y = 28
+ -x + y = 12
5y = 40
y = 8
-x + (8) = 12
-x + 8 = 12
-x = 4
x = -4