Answer:
Step-by-step explanation:
Here is a list of possible outcomes.
Penny nickel
Heads heads
Heads tails
tails Heads
tails tails
Since there are four ways the two coins can land, the chances of getting tails - tails is 1 chance in 4.
Answer:
C. 18π
Step-by-step explanation:
s = r*θ = 20*(9π/10) = 18π
s - arc length
θ - angle in radians
r - radius
Answer:
dodo water
Step-by-step explanation:
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
dodo water
Answer:
x+2y=-7
Step-by-step explanation:
2y + x =-7
x+2y=-7
Answer:
The value of the unit rate is 8
Step-by-step explanation:
we know that
To calculate the unit rate simply divide the first number by the second number
so
![12:1\frac{1}{2}](https://tex.z-dn.net/?f=12%3A1%5Cfrac%7B1%7D%7B2%7D)
Convert mixed number to an improper fraction
![1\frac{1}{2}=1+\frac{1}{2}=\frac{1*2+1}{2}=\frac{3}{2}](https://tex.z-dn.net/?f=1%5Cfrac%7B1%7D%7B2%7D%3D1%2B%5Cfrac%7B1%7D%7B2%7D%3D%5Cfrac%7B1%2A2%2B1%7D%7B2%7D%3D%5Cfrac%7B3%7D%7B2%7D)
substitute in the expression above
![12:\frac{3}{2}=\frac{24}{3}=8](https://tex.z-dn.net/?f=12%3A%5Cfrac%7B3%7D%7B2%7D%3D%5Cfrac%7B24%7D%7B3%7D%3D8)