Answer:
65.1 km/hr
Step-by-step explanation:
The car travelled 217km in 3 hours and 20 minutes. We can divide the km by the time to obtain a speed that is km per a time value. If we would like it expressed as km/hour, we will need to convert the 20 minutes into hours.
20 minutes is (20 minutes)*(1 hour/60 minutes) = (1/3) hour
The total time to travel 217km is 3 and 1/3, or (10/3) hours.
The speed is (217 km/((10/3) hours)
Speed = 65.1 km/hr
I think you mean simplify:
2x + 3 = x + x + 3.
We can start by moving all the variables to one side, and the numbers to another:
2x - x - x = 3 - 3.
0 = 0.
Sooo the answer is 0 I guess.
A is True
B is False
C is False
D is True
A.)
3cm 20km
7.5cm Xkm
X=20•7.5/3
X=150/3
X=50 km TRUE
B.)
3cm. 20km
4cm. Xkm
X=20•4/3
X=80/3
X=26.66 FALSE
C.)
3cm. 20km
Xcm. 45km
X=3•45/20
X=135/20
X=6.75cm FALSE
D.)
3cm. 20km
Xcm. 66km
X=3•66/20
X=198/20
X=9.9 cm TRUE
Step 1. 11x -3x = 8x
Step 2. 14-11 = 3
Answer: 8x + 3
Answer:
Arithmetic sequence:
Geometric sequence:
Step-by-step explanation:
The arithmetic sequence: is the sequence whos terms increased or decreased by a constant amount.
Examples:
- 4, 7, 10, 13, 16, ........................ (increased by 3)
- 25, 20, 15, 10, ......................... (Decreased by 5)
The explicit formula for the nth term of the arithmetic sequence is:
- is the first term
- d is the constant difference between each two consecutive terms
- n is the position of the number in the sequence
The geometric sequence: is the sequence whos consecutive terms have a constant ratio
Examples:
- 1, 2, 4, 8, 16, ........................ (Multiplying by 2)
- 625, 125, 25, 5, ......................... (Dividing by 5)
The explicit formula for the nth term of the geometric sequence is:
- is the first term
- r is the constant ratio between each two consecutive terms
- n is the position of the number in the sequence
* Arithmetic sequence →→→→→→ Geometric sequence
Has a constant difference →→→→→→ Has a constant ratio
→→→→→→
→→→→→→