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Rina8888 [55]
3 years ago
14

A bus travels 20 km in 30 minutes. What is the average speed of the bus in km/hr?

Mathematics
1 answer:
sergeinik [125]3 years ago
8 0

Answer:

40 km

Step-by-step explanation:

You have 2 variables: km and minutes/hour

30 minutes turned into 60 minutes(1 hour) by multiplying by 2...

So you need to do the same for km!

20km * 2 = 40km per hour

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What is x and y equal in: -2X-y=3 and x+2y=4 (find x and y using elimination)
makvit [3.9K]
-2x-y=3    ...(1)
x+2y=4    ...(2)
multiply (2) by 2 and add to (1)
-2x-y+2x+4y=3+8
3y=11
y=11/3
from (2)
x=4-2y=4-2(11/3)
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Answer:

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4 0
3 years ago
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Levart [38]
11- 59.1. Got the Answer for #11, but for #12 you lowkey should just use any type of calculator for that shape
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What can you divide a2b5 by to get a quotient of 1?
Kitty [74]

9514 1404 393

Answer:

  a^2b^5

Step-by-step explanation:

Anything divided by itself is 1.

That is, anything multiplied by its reciprocal is 1. This value (the reciprocal of the expression) is called the "multiplicative inverse." Its value is that the product of an expression and its multiplicative inverse is 1, the multiplicative identity element. (Anything times 1 is itself.)

So, to get 1 as a product, multiply by 1/(a^2b^5), which is to say, divide by a^2b^5 to get 1 as a quotient.

8 0
3 years ago
A rectangular water tank is 150 cm high and the area of its base of its is 30000 cm². Find the capacity of the tank in litre. (
Phoenix [80]
Answer:
We know that volume of cuboid $$=\l ength \times breadth \times height$$
V=3×2×5
V=30 m
3
Now, we know that 1 m
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=1000 L
So,
V=30×1000 L
V=30000 L



Mark brainliest please


Hope this helps you
7 0
3 years ago
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