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steposvetlana [31]
3 years ago
15

WILL MARK BRAINLIEST!! Lorri took a 240 km trip to Waterloo. On her way there, her average speed was 120 km/h. She was stopped f

or speeding, so on her way home, her average speed was 80 km/h. What was her average speed, in km/h, for the entire round-trip?
Mathematics
1 answer:
skelet666 [1.2K]3 years ago
7 0

Answer: Her average speed was 480 km/ 5h which is 96.

Step-by-step explanation: When she went there her speed 120 km/ h and if the distance was 240 km, then it took her 2 hours to get there. 240 divided by 120 is 2. When she returned her average speed was 80 km/h and since the distance was 240, 240 divided by 8 is 3 which means it took her 3 hours to get back home. She drove a total of 480 km , because the distance to the trip was 240 and the distance from the trip to the back was 240. 240 + 240 is 480. She drove a total of 480 km in 5 hours because it took her 2 hours to go there and 3 hours to come back . 480 km / 5h

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The P in the Interest formula represents the money that you end up with after interest is calculated. True or False?
zhannawk [14.2K]

Answer:

true

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Step-by-step explanation:

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3 years ago
An equation is shown 5 x + 3x equals 5x + 15 / 2 what value of 3 x makes this equation true
Ipatiy [6.2K]
3x would have to be 15/2.

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4 years ago
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Step-by-step explanation:

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3 years ago
Plzzzzz help i need this for my homework thx :)
never [62]

Answer:

=4.1d+5.4h−18

Let's simplify step-by-step.

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3 years ago
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How are these triangles congruent?
ICE Princess25 [194]

Answer:

\triangle PTY \cong \triangle PSQ by ASA

Step-by-step explanation:

In triangle PTU and triangle PSQ

\overline{PT} \cong \overline{PS}     [Side]             [Given]

\angle PTU \cong \angle PSQ          [Angle]

Vertical angles are those angles which are opposite to each other.

\angle TPU \cong \angle SPQ        {Angle]

ASA(Angle-Side-Angle) postulates states if two angles and one included  side of one triangle are congruent to two angles and the included side of the other triangle, then these triangle are congruent.

by ASA postulates;

\triangle PTY \cong \triangle PSQ


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4 years ago
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