MATHEMATICS MIDDLE SCHOOL

Two litres of water are poured into an empty rectangular tank of length 25cm and width 20cm.The water completely fills the tank, without it overflowing.
calculate the depth of the tank

Answers

Answer 1
Answer: 1000 cubic cm = 1 liter

V=WHL
2000 cubic cm=W(20)(25)
2000 cubic cm=W(500)
2000/500 = 4

depth = 4cm
Answer 2
Answer: 1 litre = 1000 cm³

thus, 2 litre = 2000cm³

volume = lbh

2000cm³ = 25 x 20 x h

2000cm³ = 500 x h

Thus, h = 4 cm.

Thus, the depth of tank is 4 cm

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Rate for 40 meters in 10 seconds?

Answers

The rate for 40 meters in 10 seconds is

40m/10sec (40 meters per 10 seconds)

You can turn it into a different unit of measurement by multiplication or division.

For example, if you want the rate in 1 second, you divide both units by 10 (because there are 10 seconds, and 10 ÷ 10 = 1).

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John has 5 apples. Cina has 5 times as john. how many apples does Cina have

Answers

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Two angles are complementary. The first angle is 2x degrees. The second angle is (x+30) degrees. Determine the larger angle

Answers

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Winnie the Pooh goes to the honey store to buy a case of honey for the winter. The case of 24 jars of honey cost $27.60. What is the cost of each jar?

Answers

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The sum of A and B is 171 and their difference is 35. What are the numbers?

Answers

Answer:

103 and 68

Step-by-step explanation:

Given

A + B = 171

A - B = 35

Add the two expressions to eliminate B.

B + (-B) = B - B = 0

We have

2A = 206

Divide both sides by 2 to isolate A

2A/2 = 206/2

A = 103

Now substitute 103 for A in either expression to get B

Using the first expression , we have

A + B = 171

103 + B = 171

Subtract 103 from both sides

103 - 103 + B = 171 - 103

B = 68

The numbers are 103 and 68

Check

103 + 68 = 171

103 - 68 = 35

Answer:

103 and 68

Step-by-step explanation:

since the difference has to be 35 subtract 35 from 171 (equals 136) then divide it by 2, you get 68 which is your first number, then add 35 back and get 103 for the second number, I hope this helped
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