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2 years ago

How long would it take to lay 8 rows of 18 bricks each at a rate of 4 bricks per minute

2 answers:

8 0

8 times 18 is 144. then take that and divide it by 60 seconds which equals a minute. your answer is 2 minutes and 40 seconds

erastovalidia [21]2 years ago

3 0

Do 8 times 18 and that equals 144 and then divide that by 4 and that is 36 so your answer is 36

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Tom rolls 2 fair dice and adds the results from each. Work out the probability of getting a total that is a factor of 21.

nika2105 [10]

Answer:

3 plus 4. and 2 plus 1. or 4 plus 3 or 1 plus 2

Step-by-step explanation:

5 0

2 years ago

Is the following sentence a statement or not a statement? open the door. it is a statement. it is not a statement. cannot tell

erma4kov [3.2K]

It is a statement. I hope this helps

4 0

2 years ago

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• What can you say about the values of 180 and 2x2x3x3x5?

kiruha [24]

Answer:

2×2×3×3×5 are the prime factors of 180

Step-by-step explanation:

If you draw a factor tree, you would find that 2x2x3x3x5 are the prime factors of 180

hope this helps :)

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3 years ago

Solving a right triangle (ROUND TO THE NEAREST TENTH)

Kay [80]

Answer:

see explanation

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the given angles from 180 for B

B = 180° - (90 + 40)° = 180° - 130° = 150°

--------------------------------------------------------------

sin40° = $\frac{opposite}{hypotenuse}$ = $\frac{a}{21}$

Multiply both sides by 21

21 × sin40° = a, thus

a ≈ 13.5 ( to the nearest tenth )

--------------------------------------------------------------

cos40° = $\frac{adjacent}{hypotenuse}$ = $\frac{b}{21}$

Multiply both sides by 21

21 × cos40° = b, thus

b ≈ 16.1 ( to the nearest tenth )

3 0

3 years ago

Decimals from 7.0 to 8.4 with an interval of 0.2 between each pair of decimals

Vitek1552 [10]

Decimals from 7.0 to 8.4 with an interval of 0.2 between each pair of decimals

We start with 7.0 and keep adding 0.2 till we get 8.4

7.0 + 0.2 = 7.2

7.2 + 0.2 = 7.4

7.4 + 0.2 = 7.6

7.6 + 0.2 = 7.8

7.8 + 0.2 = 8.0

8.0 + 0.2 = 8.2

8.2 + 0.2 = 8.4

So, the decimals from 7.0 to 8.4 with an interval of 0.2 are

7.2, 7.4, 7.6, 7.8, 8.0, 8.2

3 0

2 years ago

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