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White raven [17]
4 years ago
8

The Shinkansen, the fastest train in Japan, traveled 75 kilometers in 0.25 hours. What was its speed in kilometers per hour?

Mathematics
2 answers:
Sedaia [141]4 years ago
6 0

300 kilometers per hour

jek_recluse [69]4 years ago
3 0
75×4=300, the Shinkansen traveled at a speed of 300km/h
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"Suppose that Novak Djokovic and Roger Federer are playing a tennis match in which the first player to win three sets wins the m
o-na [289]

Answer: it could end in 20 different ways.

Step-by-step explanation:

This match could be

3x0 D or F

3x1 D or F

3x2 D or F

For 3x0

We have 2 options: DDD or FFF

2.P₁ = 2.1 = 2

For 3x1

We have 6 options

DFDD         FDFF

DDFD         FFDF    

FDDD         DFFF

2.3.1 = 6

For 3x2

we have 12 options:

DFDFD          FDFDF

DDFFD          FFDDF

DFFDD          FDDFF

FFDDD          DDFFF

FDFDD          DFDFF

FDDFD          DFFDF

2.3.2 = 12

In total we could have 20 outcomes.

5 0
4 years ago
Find the amount accumulated if $50000 is invested for 20 years at a rate of 7% compunded daily?
pickupchik [31]
So to find this we need to use the compound interest formula which is A=P(1 + r/n) ^nt
P = principal amount
R = percentage rate
N = number of times it is compounded yearly
T = time

So you plug in the numbers for the formula

50,000(1 + 0.07/ 365) ^0.07*365

The answer would be $202,732.78
I hope this helps :)
7 0
3 years ago
Solve systems of equations by algebraically x-2y=7 <br> 2x+5y =5
Natali [406]

Answer:

(5,-1) or x=5 y=-1

Step-by-step explanation:

I used the substitution method to solve this!

<em>1. Pick one of your equations and solve for one of the variables. I chose the first equation and solved for x.</em>

x-2y=7

(Move the -2y to the other side of the equation in order to get the x by itself. You do the opposite, so it becomes +2y.)

x=2y+7

<em>2. Now take your second equation and plug in what you got for x into the x variable.</em>

2(2y+7)+5y=5

(Multiple 2 by everything inside of the parentheses.)

4y+14+5y=5

(We want to get the y by itself, so move the 14 to the other side.)

4y+5y=-14+5

(Combine all the like terms.)

9y=-9

(Divide the 9 from the y. What you do to one side you must do to the other.)

y=-1

<em>3. Since you have one variable solved for. Now take the first equation and plug in your y.</em>

x-2(-1)=7

(Multiple -2 by -1)

x+2=7

(Move the 2 to the other side in order to get the x by itself.)

x=5

<em>4. If needed, plug in your x and y values into the equations in order to check your answer.</em>

Hope this could help!

8 0
3 years ago
Read 2 more answers
The selling price of a house dropped from $250,000 to $210,000 over a period of 5 years. by what percent does the price need to
Mnenie [13.5K]
The price of the house would need to increase by 19.05% in order to become its original price of $250,000. The price would become $250,005, which the least amount I have gotten to while attempting your question.
If this has helped you, consider my answer to become the Brainliest!

4 0
3 years ago
Help pls this for my math test
rewona [7]

Step-by-step explanation:

option C is correct....

6 0
3 years ago
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