Answer: B) 40 miles per hour
Step-by-step explanation:
Each twelve minutes is 1/5 hr = 0.2 hr
Total time is therefore 1 hr+ 0.2hr = 1.2hr
Vavge = 48 miles / 1.2 hr = 40 miles/hr
Answer:
2
Step-by-step explanation:
The slope of a line is rise/run.
First, you must choose any two points on the line.
Rise is how many spaces a line moves upward or downward from one point to another.
The run is how many spaces a line moves left or right from one point to another.
It is given that from point M to point N, the line moves up 4 spaces and runs to the right 2 spaces.
- 4 = rise
- 2 = run
- Slope = 4/2, which can be simplified to 2, because 4 divided by 2 is 2.
N=number of African animals in the zoo;
we suggest this equation:
172=45+n/2
Least common multiple=2
172*2=45*2+n
344=90+n
n=344-90
n=254
Answer: there are 254 African animals in the zoo.
Answer:
Therefore the mass of the object is 56.78 kg.
Step-by-step explanation:
Mass: Mass of an object is physical property.Mass of an object can't change with respect to place.
The S.I unit of mass is Kg
But the weight of an object changes with respect to place.
Weight= mass× gravity
The gravitational force varies place to place.
For this reason the weight of an object is not constant.
The value of g is 9.8 m/s².
Unit of weight:
Weight = mass × gravity
=Kg×m×s⁻²
=N
Given, weight= 557 N , g= 9.81 m/s² and mass=?
Weight = mass × gravity
⇒557= mass× 9.81
⇒mass= 56.7787≈56.78
Therefore the mass of the object is 56.78 kg.
Answer:
a. 4x -1
Step-by-step explanation:
