MATHEMATICS MIDDLE SCHOOL

What is the value of 2x{6+[12/(3+1)}-1

Answers

Answer 1

Answer:

The value of an expression is calculated by simplifying the expression.

The value of the expression is 17

The expression is given as:

$\mathbf{2 * \{6+[12 / (3+1)\}-1}$

Simplify 3 + 1

$\mathbf{2 * \{6+[12 / (3+1)\}-1 = 2 * \{6+[12 / 4\}-1}$

Divide

$\mathbf{2 * \{6+[12 / (3+1)\}-1 = 2 * \{6+[3\}-1}$

Remove square bracket

$\mathbf{2 * \{6+[12 / (3+1)\}-1 = 2 * \{6+3\}-1}$

Add

$\mathbf{2 * \{6+[12 / (3+1)\}-1 = 2 * \{9\}-1}$

Remove curly bracket

$\mathbf{2 * \{6+[12 / (3+1)\}-1 = 2 * 9-1}$

Multiply

$\mathbf{2 * \{6+[12 / (3+1)\}-1 = 18-1}$

Subtract

$\mathbf{2 * \{6+[12 / (3+1)\}-1 = 17}$

Hence, the value of the expression is 17

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if the product of two positive fractions a and b is 15/56' find three pairs of possible values for a and b.

Answers

all you have to do is find pairs of factor for both 15 and 56

e.g. 1,15 3,5

1.56 2, 28 4, 14

so three possibilities could be

1/1 x 15/56

3/4 x 5/14

1/2 x 15/28

What's the square root of 52

Answers

The square root of 52 is 7.211

The answer is 7.21110255093.

The sum of a number and two times a smaller number is 98. The bigger number is 22 less than three times the smaller number. What are the two numbers?

Answers

Answer:

The smaller number is 24 and the larger number is 50.

Step-by-step explanation:

b>a

b=3a-22, b+2a=98, using b from the left in the right:

3a-22+2a=98

5a-22=98

5a=120

a=24, and since b=3a-22,

b=50

So the smaller number is 24 and the larger number is 50.

What is 46 divided by 5,624

Answers

46/5624=0.0081792318

the anser is about 0.00817923186

The line plot shows the number of weeks that songs have been on the top 20 Country Songs list. Would the mean, median, mode, or range best represent the data? Explain.

Answers

The mode would be the best way to represent the data because it shows how many times it has shown up on the list.

I agree with choosing the mode

How does using a model help me multiply decimals by whole numbers?

Answers

counting them it simple

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