3 years ago

Which number is between 0.5 and 5/8 ? 3/11 1/11 12/45 7/45

1 answer:

8 0

We are asked to determine the number that is between 0.5 and 5/8. In this case, 0.5 is equal 1/2. To find the number in between, we find the average of the two numbers. The LCD of 2 and 8 is is 8 so 1/2 is equal to 4/8. 4/8 + 5/ 8 is equal to 9/8. 1/2 of 9/8 is equal to 9/16.

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Lana is the oldest of four sisters. Her youngest sister is half her age. The other two sisters are twins $2$ years younger than

vagabundo [1.1K]

Let the youngest sister be n years
Lana will be 2n years, as her youngest sister is half her age
The age of the twins separately will be 2n-2 as they are 2 years younger than Lana
So, the equation looks like this:
n + 2n + 2(2n-2) = 45
Now solve for n:
3n + 4n - 4 = 45
7n - 4 = 45
7n = 49
n = 7
So the youngest sister is 7, Lana is 14 and the twins are 12. 14 + 12 + 12 + 7 =45

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3 years ago

1 - 121000<br> What is the slope of a line that is parallel to the line y = 3/4x + 2

OleMash [197]

Answer:

3/4

Step-by-step explanation:

Parallel lines have same slopes.

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3 years ago

(-7x+8y-2z)+(-9x-y+6z)

Svetach [21]