3. The product of seventeen and a number, increased by the product of eight and the same number, increased by thirty/five.
4. Seventeen times a number plus eight times the same number plus thirty five
Answer:
(-1, 7)
Step-by-step explanation:
Since five units away from (-1,2), you add five on both variables of the coordinate.
Vertical transition:
(-1 + 5, 2)
(4,2)
Horizontal transition:
(-1, 2 + 5)
(-1, 7)
Vertical and horizontal transition:
(4, 7)
Out of all the option, (-1, 7) is the viable option.
Twice means two times something so2a. Four more than means adding for so your answer is 2a+4
Answer:
V1 = 60 km/h
V2 = 40 Km/h
Step-by-step explanation:
The speed of an object is defined as
Speed = distance / time
Let
V1 be the speed of the faster car
V2 be the speed of the other car
t1 the time it took for the first car to arrive
t2 the time it took for the second car to arrive
d1 the distance traveled by first car
d2 the distance traveled by second car
We know thanks to the problem that
V1 = V2 + 20 Km/h
t1 = t2 - 1 hour
d1 = d2 = 120 Km
d1 = V1 * t1
d2 = V2* t2
V1 * t1 = V2* t2
V1* t1 = (V1 -20)*(t1 +1)
The system of equations
(V1 -20)*(t1 +1) = 120
V1 * t1 = 120
120 + (120/t1) -20*t1 = 140
(120/t1) -20*t1 = 20
Which gives,
t1 = 2
This means
V1 = 60 km/h
V2 = V1 - 20 Km/h = 40 Km/h
Let c= cost to rent each other
Let t= cost to rent each other
2c+3t=25
6T+5T=49
Multiply the 2nd equation by (-2) and add equation together
2c+3t=25
-12c-10t= 98
2t=98
T=49
Put this value into the 1st equation solve c
2c+3(49)=49
2c+147=49
2c=98
C=49
Cost to each chair and table are same 49.
