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Burka [1]
3 years ago
9

7 A. Solid cubical block is 24cm long find its volume​

Mathematics
1 answer:
Rzqust [24]3 years ago
3 0

Answer:

13824 cm ^3

Step-by-step explanation:

Cubical block volume= 24 x 24 x 24

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tensa zangetsu [6.8K]
The mean is the average.
To solve for the average we add all the numbers up and divide by how many numbers there are.
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268/10
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8 0
3 years ago
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15% of what number is 9?
Sholpan [36]

Answer:

x=60

Step-by-step explanation:

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or,  

15

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× x = 9

Multiplying both sides by 100 and dividing both sides by 15,

we have x = 9 ×  

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If you are using a calculator, simply enter 9×100÷15, which will give you the answer.

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Consider the statement 4-3+5=-6+8+4 this mathematically correct sentence is the sentence true or false? Explain how you know
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It is true because
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Realtor makes 3% commission. What is the commission on a $200,000 house?
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3 0
3 years ago
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A bag contains purple marbles and green marbles, 55 in total. The number of purple marbles is 7 more than 2 times the number of
kirill [66]

There are 39 purple marbles in the bag

Step-by-step explanation:

The given is:

  • There are 55 purple and green marbles in total in a bage
  • The number of purple marbles is 7 more than 2 times the number of green marbles

We need to find how many purple marbles in the bag

Assume that the number of the purple marbles is P and the number

of the green marbles is G

∵ There are P purple marbles and G green marbles in the bag

∵ There are 55 marbles in the bag

∴ P + G = 55 ⇒ (1)

∵ The number of purple marbles is 7 more than 2 times the number

   of green marbles

- Add 7 and 2 times G to get P

∴ P = 7 + 2 G

- Subtract 2 G from both sides

∴ P - 2 G = 7 ⇒ (2)

Let us solve the system of equations to find P

Multiply equation (1) by 2 to eliminate G

∵ 2 P + 2 G = 110 ⇒ (3)

- Add equations (2) and (3)

∴ 3 P = 117

- Divide both sides by 3

∴ P = 39

∵ P represents the number of the purple marbles in the bag

∴ There are 39 purple marbles in the bag

There are 39 purple marbles in the bag

Learn more:

You can learn more about the system of equations in brainly.com/question/3739260

#LearnwithBrainly

7 0
3 years ago
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