How can I find 30% of 2140?

Answers

Answer 1

Answer: 'is' in mathematics means equal
'of' in mathematics means multiplication

30% can also be written as 30/100

$x = (30)/(100) * 2140\n\nx = (3)/(10) * 2140\n\nx = 3 * 214\n\n\boxed{\bf{x=642}}$

Answer 2

Answer: 30% of 2140 is 642

Convert percentage into a decimal: 30%/100 = 0.3
Multiply decimal by 2140: 0.3 × 2140 = 0.3 <-- our answer.

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X minus 3 equals 11 help me please

Answers

Since x minus 3 equals 11 you add them together which makes 14 so x equals 14.

this is your equation; x - 3 =11

and this is how you solve it;

x-3 =11

x -3 + 3 = 11+3

x = 14

and if you want to check it;

x - 3 =11

14 -3 =11

11 =11

Hope that helps:)

Grant has 2 over 3 cup of ice cream in a bowl. He then removes two 1 over 6 cups of ice cream to share with his little brother. Which of the following best explains the amount of ice cream left in Grant's bowl?2 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 3 over 6

2 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 2 over 6

1 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 3 over 6

1 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 2 over 6

Please give explaination of your answer

Answers

It would be the second answer. He starts with 2/3 cup, then take out 2 1/6 cup amounts, which make 2/6 cup. Since he's taking it out, you would subtract it from the original value. So you would get 2/3 cup minus 2/6 cup and to make the denominators equal you would multiply 2/3 cup by 2, so you would have 4/6 cup minus 2/6 cup which equals 2/6 cup.

Answer:

the second one

2 over 6, because 2 over 3 minus 2 times 1 over 6 equals 2 over 3 minus 2 over 6

Step-by-step explanation:

trapezoid ABCD is congruent to trapezoid A B C D which sequence of transformations could have been used to transform trapezoid ABCD to produce trapezoid A B C D

Answers

If the trapeziods are congruent, then the trapezoid could have been translated, rotated or reflected across some axis. All of these forms of transformation move the object without altering the shape/size of the object.

Answer:Translated, Rotated or Reflected

How do u do:
8/11(n-10)=64

Answers

firstly multiply the 8 by (n-10)
8(n-10) = 8n-80
form equation
(8n-80)/11 = 64
multiply both sides by 11
8n - 80 = 64 x 11
8n - 80 = 704
than add 80 to both sides
8n - 80 + 80 = 704 + 80
8n = 784
divide both sides by 8
8n/8 = 784/8
n = 98

Answer:

Step-by-step explanation:

5x + 3(x-5) = 6x + 2x -15 solve the equation and write the number of solutions. Name one property you used to solve this equation.

Answers

Answer:

infinite number

Step-by-step explanation:

Carry out the multiplication indicated here:

5x + 3(x-5) = 6x + 2x -15 => 5x + 3x - 15 = 6x + 2x -15

Now combine the x terms: We get 8x - 15 = 8x - 15, or -15 = -15.

This last result is always true, so this equation has an infinite number of solutions.

The number of solutions is infinitive, meaning that you could use any number. And a property that you used to solve this problem was distributive property. In order to distribute 3 over (x-5)

How do you decompose 8/12

Answers

Simple..

what you are asking is to simplify $(8)/(12)$

so divide the numerator and the denominator by 4...

÷ $(8)/(12) / (4)/(4) = (2)/(3)$

Thus, your answer.

It's eight divided by twelve, which is 0.7.

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