y = - 2x + 7; slope m = -2
Parallel lines, slope is the same
So y = -2x + b
b = y + 2x
Passing thru (4 , 1)
Plug in
b = 1 + 2(4)
b = 9
Equation
y = - 2x + 9
The inputs are the x values and the outputs are the y values
outputs : 4,3,-1,-3
Choice A
Answer: Awnser is 0.45 as a decimal and 9/20 as a fraction
Step-by-step explanation:
1. Multiply the numbers
((1/2)*9)/10 = (9/2)/10
2.divide the number's
(9/2)/10 = 9/20
Awnser = 9/20
Answer:
the rate of each train is 139 km/h and 159 km/h.
Step-by-step explanation:
let
v = the rate of the slower train
v + 20 = the rate of the faster train
d = 1490 km the distance that the two train will travel
t = 5 hr the time of the travel
since speed = distance/time => distance = speed*time
v*t + (v+20)t = d
5v + 5(v + 20) = 1490
5v+5(v+20)=1490
Step 1: Simplify both sides of the equation.
5v+5(v+20)=1490
5v+(5)(v)+(5)(20)=1490(Distribute)
5v+5v+100=1490
(5v+5v)+(100)=1490(Combine Like Terms)
10v+100=1490
10v+100=1490
Step 2: Subtract 100 from both sides.
10v+100−100=1490−100
10v=1390
Step 3: Divide both sides by 10.
10v/10 = 1390/10
v = 139km/h
Next
we add 139 to 20
139 + 20 = 159 km/h
the rate of each train is 139 km/h and 159 km/h.
Answer:
420 hg = __4200000___ cg
Step-by-step explanation:
<h2>please mark me brainliest</h2>
