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zhuklara [117]
3 years ago
5

A race car driver complete 30 laps in 15 minutes at a constant Speed

Mathematics
1 answer:
brilliants [131]3 years ago
3 0

Answer:

Sooo it can complete 120 laps in 1 hour.

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B2y-1%7D%7B15%7D%20%3D%5Cfrac%7By%7D%7B10%7D" id="TexFormula1" title="\frac{2y-1}{15}
bonufazy [111]

Answer:

y = 2

Step-by-step explanation:

Given

\frac{2y-1}{15} = \frac{y}{10} ( cross- multiply )

10(2y - 1) = 15y ← distribute left side

20y - 10 = 15y ( subtract 15y from both sides )

5y - 10 = 0 ( add 10 to both sides )

5y = 10 ( divide both sides by 5 )

y = 2

3 0
2 years ago
5. Shane has a winning lottery ticket. He gives
kupik [55]

Answer:

£33,000

Step-by-step explanation:

The money he gives to his daughter is represented by the 3 in the ratio so you divide £9000 by 3 to get £3000

The money he invests is represented by 11 in the ratio so you multiply £3000 by 11 to get £33,000

Hope this helps! :)

7 0
3 years ago
⦁ The population of the Tallahassee metropolitan area was 382,627 at the end of 2017 with a growth rate of 2.78%. Using the expo
a_sh-v [17]

Answer:

The exponential growth model for the population of the Tallahassee metropolitan area is y=382627(1.0278)^t.

Step-by-step explanation:

The exponential formula is

y=b(1+r)^t

Where b is initial population, r is growth rate, (1+r) is growth factor and t is time (in years) after the initial year.

The population of the Tallahassee metropolitan area was 382,627 at the end of 2017. The growth rate is 2.78%.

Here the initial year is 2017 and rate is 0.0278

y=382627(1+0.0278)^t

y=382627(1.0278)^t

Graph of the equation is shown below. The x-axis represents the number of years after 2017 and y-axis represents the total population.

Difference between 2025 and 2017 is 8 years. Put t=8

y=382627(1.0278)^8

y=382627(1.0278)^8

y=476479.828188\approx 476479

Therefore the projected population in 2025 is 476479.

7 0
3 years ago
Hannah Decided to make a cake. it took her 45 minutes. If she finished the cake at 4:15 PM, when did she start cooking?
DedPeter [7]
3:30 PM is the answer
5 0
3 years ago
Read 2 more answers
Answer the following questions.
Maslowich

Answer:

The first is 12

The second is 25.35

Step-by-step explanation:

The second is confusing so sorry if I got that wrong

Please give brainelest

3 0
2 years ago
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