Answer: 36
Explanation:
• group like terms
—> 3/4m + -2/3m = 5 + -2
•find lowest common denominator
—> 3/4*3 m + -2/3*4m= 5 + -2
•multiply denominator
—> 3/12m + -2/12m = 5 + -2
•combine like terms
—> 1/12m = 3
•simplify the arithmetic
—> m= 3 over 1/12
—> m= 36
1. 319
2. 77
3.60
4.c
I hope it helps
Answer:
52.24 km
Step-by-step explanation:
Given that,
The distance needed to stop a car, d, varies directly as the square of the speed, s, at which it is travelling.
d = ks²
Where
k is constant
When s₁ = 70 km/hr, d₁ = 40 m, s₂ = 80 km/hr, d₂ = ?
So,
So, the new distance is 52.24 km.
I'm just going to assume you want the probability of getting a certain outcome for the cubes and a coin
1/6*1/6*1/2
1/36*1/2
1/72
formula for polyhedrons is V-E+F=2
F= faces = unknown F
V= vertices=F-8
E= edges=30
(F-8)-30+F=2
add the 2 F's and 30 & 8 so you get 2F-38=2
ince -38 doesn't have variable move it to other side by adding 38 to both sides
2F=38+2 which becomes 2F=40
now divide both sides by 2 to get F=20 so there are 20 faces