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LuckyWell [14K]
4 years ago
8

Dale is riding his bicycle. He rides at a speed of 9 kilometers per hour for 14.4

Mathematics
2 answers:
lesya [120]4 years ago
6 0

Answer:

He rides for 1.6 hours.

Step-by-step explanation:

14.4 divided by 9 is 1.6

valentinak56 [21]4 years ago
6 0

Answer:

  • 1.6 hrs took by dale to cover the distance.

Step-by-step explanation:

We have been given that dale is riding his bicycle. He rides at a speed of 9 kilometers per hour for 14.4.

Let's write the data in simplest form.

  • Total distance covered by dale = 14.4 km
  • Speed of bicycle = 9 km/hr

We have to find the time taken by dale to cover the distance.

Here, Time is given by distance / Speed.

Time = Distance/Speed

Time = 14.4/ 9

Time = 1.6 hr

  • Therefore, 1.6 hrs took by dale to cover the distance.
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A total of $6000 was invested, part of it at 3% interest and the remainder at 8%. If the total yearly interest amounted to $380,
Nastasia [14]

$ 2000 is invested at 3 % interest and $ 4000 is invested at 8 % interest

<em><u>Solution:</u></em>

Given that, total of $6000 was invested

Let "x" be the amount invested at 3 % interest

Then, (6000 - x) is the amount invested at 8 % interest

Given that,

<em><u>The total yearly interest amounted to $380</u></em>

Then, we can frame a equation as:

x \times 3 \% + (6000 - x) \times 8 \% = 380

<em><u>Solve the above expression for "x"</u></em>

x \times \frac{3}{100} + (6000-x) \times \frac{8}{100} = 380\\\\0.03x + (6000-x) \times 0.08 = 380\\\\0.03x + 480 - 0.08x = 380\\\\-0.05x = -100\\\\\text{Divide both sides by -0.05 }\\\\x = 2000

Thus, $ 2000 is invested at 3 % interest

(6000 - x) = 6000 - 2000 = 4000

$ 4000 is invested at 8 % interest

4 0
4 years ago
Complete the proof!!!
Tamiku [17]

Answer:

The correct options are;

1. Definition of supplementary angles

2. m∠1 + m∠2 = m∠1 + m∠3

3. m∠2 = m∠3

4. Definition of congruent angles

Step-by-step explanation:

The two column proof is presented as follows;

Statement    {}                                      Reason

1. ∠1 and ∠2 are supplementary {}       Given

∠1 and ∠3 are supplementary {}      

2. m∠1 + m∠2 = 180°     {}                      (1) Definition of supplementary angles

m∠1 + m∠3 = 180°

3. (2) m∠1 + m∠2 = m∠1 + m∠3      {}     Transitive Property

4. (3) m∠2 = m∠3     {}                            Subtraction property of equality

5. ∠2 ≅ ∠3     {}                                       (4) Definition of congruent angles

Given that angles ∠1 and ∠2 are supplementary, we have, ∠1 + ∠2 = 180°

Given that angles ∠1 and ∠3 are also supplementary, we also have, ∠1 + ∠3 = 180°

∴ ∠1 + ∠2 = 180° = ∠1 + ∠3

∠1 + ∠2 = ∠1 + ∠3

∠1 + ∠2 - ∠1 = ∠1 + ∠3 - ∠1

∴ ∠2 = ∠3

∴ ∠2 ≅ ∠3, by definition of congruent angles.

4 0
3 years ago
A roller coaster travels 3/4 of a mile in 40 seconds .what is the average speed in miles per hour​
SSSSS [86.1K]

Answer:

0.01875 miles per hour

Step-by-step explanation:

0.75 divided 40

0.01875

6 0
4 years ago
Can you plzz do 426 div by 30 thanks you and tell me how u got it
olasank [31]

Answer:

14.2

Step-by-step explanation:

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3 years ago
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4 5/12 you just add the fractions
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