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liubo4ka [24]
3 years ago
10

What is the least common denominator for the fractions 5/6and3/8? A).14 B).18 C).24 D).48

Mathematics
2 answers:
saul85 [17]3 years ago
8 0

Answer:

To find the least common denominator, or lcd, you have to find the least common multiple, or lcm. To do that you find the multiples of each number until they equal each other. I set up a chart like this,

6 -

8 -

and then I start listing multiples so,

6 - 6, 12, 18, 24,

8 - 8, 16, 24,

I stop after I find a number they are both equal to. So to get to that number I would multiply 8 by 3, and 6 by 4. This gives me 24 as the lcd. If you need the lcd to add the fractions together, then whatever you did to the bottom do to the top. So 5/6 would become 20/24 and 3/8 would become 9/24.

Answer: 24

Step-by-step explanation:

denis23 [38]3 years ago
7 0

Answer:

C). 24

Step-by-step explanation:

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If the perimeter of a square is 20, find the length of a diagonal
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Answer:

7.07

Step-by-step explanation:

<h2><u>Length</u></h2>

a square has equal length on each side

hence is the perimeter is 20 it means that :

each side is 20/4 = 5

we can make a diagonal line which create 3 right angled triangles

2 sides of the triangle are 5 , this is the base and the height

to find the length we can make use of the Pythagoras theorem

c^2 = a^2 + b^2

c is the hypotenuse ( the diagonal;)

a and b are the opposite and adjacent

hence :

c^2 = 5 ^2 + 5^2

c^2 = 50

c = \sqrt{50}

c = 7.071

to 3sf

<h3><u>diagonal length  = 7.07</u></h3>

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Step-by-step explanation:

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olga2289 [7]

Answer:

1.) slope=2

2.) slope=-3

3.) slope=\frac{1}{4}

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Step-by-step explanation:

The unit rate is also known as slope. Slope is the change in the y values over the change in the x values:

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However, with certain graphs, the slope can be found in a simpler manner.

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Answer:

Sample Response: First, the like terms had to be combined using the lowest common denominator (LCD). Then the subtraction property of equality was used to isolate the variable term. Finally, both sides of the equation were multiplied by the reciprocal of the coefficient to solve for a.

Step-by-step explanation:

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