MATHEMATICS MIDDLE SCHOOL

robin needed three and two thirds feet of thread to finsh a pillow she was making if she has two times as much thread a she needs what is the lenght of the thread that she has

Answers

Answer 1
Answer: 3 and 2/3

she has 2 times of that
multiply 3 and 2/3 by 2
3 times 2=6
2/3 times 2=4/3=1 and 1/3
6+1 and 1/3=7 and 1/3

she has 7 and 1/3 feet

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MIDDLE SCHOOL

Solve for x: (x − 2) = 4x.

Answers

Answer:

hope this helps you...

Answer:

x =

Step-by-step explanation:

(x - 2) = 4x

Since there is nothing to distribute (no coefficients before the parentheses), we can remove them.

x - 2 = 4x

Isolate the x. We can do this by subtracting x from each side.

x - 2 = 4x

-x         -x

-2 = 3x

Now, we must find out what x (1x) equals. We will do this by dividing each side by 3.

=  

 = x

So, x =

x =

MIDDLE SCHOOL

Please help

4 [2 (x + 3) + 7] - 5x

Answers

Answer:

3x + 52

Step-by-step explanation:

Remember to solve the problem in the order of PEMDAS:

1) Parenthesis:

4 (2x + 6 + 7) - 5x

= 4 (2x + 13) -5x

2) Since there are no Exponents, Multiply:

8x + 52 - 5x

3) Subtract:

3x + 52

HIGH SCHOOL

For the data set, the mean is 3.26 and the range is 1.5. The data is transformed by subtracting 0.5 from each data value. What are the mean and range of the new data set?

Answers

Answer:

Mean of the new data set = 2.76

range = 1.5

Step-by-step explanation:

For the data set, the mean is 3.26 and the range is 1.5.

The data is transformed by subtracting 0.5 from each data value.

Mean is also average of the data set. As a general rule the mean will be changed by adding or subtracting a constant to each value. However the range will remain the same.

The mean would be 3.26 - 0.5 = 2.76

There is no change in the range, so the range would be same = 1.5

The mean of the new data set is 2.76, and the range of the new data set is 1.5.
HIGH SCHOOL

Which equation is equivalent to 4.5 = 2a?

Answers

2a = 4.5    |divide both sides by 2

a = 2.25

Answer:

a = 2.25

Step-by-step explanation:

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