It’s the distributive property.
Two equivalent expressions are multiply 12+4x by 2= 24+8x, and divide 12+4x by 2= 6+2x
Answer:
13 hours
Step-by-step explanation:
Average speed = Distance traveled / time taken
⇒ Distance = Average speed × Time
d = s × t
For the first trip;
Average speed = 280 mph
d₁ = 280t₁ ------(1)
where;
d₁ is the distance covered to get to the destination
t₁ is the time taken to get to the destination
For the second trip;
Average speed = 240 mph
d₂= 240t₂ ------(2)
where;
d₂ is the distance covered on the way back
t₂ is the time taken on the way back
The trip is the same distance to and fro. Therefore,
d₁ = d₂
Substituting the equation for d₁ and d₂
280t₁ = 240t₂ ------(3)
It took one hour less time to get there than it did to get back, then,
t₁ = t₂ - 1
t₂ = t₁ + 1 ------(4)
Substituting equation (4) into equation (3)
280t₁ = 240(t₁ + 1)
280t₁ = 240t₁ + 240
280t₁ - 240t₁ = 240
40t₁ = 240
t₁ = 240/40
t₁ = 6 hours
From equation (4)
t₂ = t₁ + 1
t₂ = 6 + 1
t₂ = 7 hours
The total time for the trip is t₁ + t₂ = 6 + 7
= 13 hours
The SAS congruence is basically:
S- side
A- angle
S - side
If two triangles have two congruent sides and share one angle (or have one angle in between), then it (the triangles) are considered congruent.
Answer:
its either B,C, OR D, because if you add the numbers inside the parenthesis and times it by the number in front of the : ( ), then you get 180 and that's what the number is that you should get. From Jacob in middle school in Florida.
Step-by-step explanation:
Where (because) is, to the end of the whole sentence is the explanation. thank you for understanding if you do
just got it wrong and the answers turn out to be B,and D.
