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3 years ago

What is 2/3 + 1/2 In fraction form please .

Mathematics

2 answers:

sergejj [24]3 years ago

8 0

Answer:

Step-by-step explanation:

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first get common denominators:

2/3 + 1/2

4/6 + 3/6

then add

4/6 + 3/6

7/6

simplify

7/6 or 1 and 1/6

vazorg [7]3 years ago

7 0

Answer: 7/6 or 1 and 1/6

Step-by-step explanation:

2 1

3 2

you have to make them have the same denominators(the number on the bottom of a fraction)

2/3--> 4/6

1/2---> 3/6

4/6+3/6=7/6 or 1 and 1/6

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Jeff feeds the family dog on Wednesdays and his sister Melody feeds the dog on Fridays. On Wednesday, Jeff gave the dog 5/8 of a

Tasya [4]

8 x 5/8 = The ounces fed by Jeff
You need to convert 1/2 with the denominator of 8 with would be 4/8
8 x 4/8 = The ounces fed by Melody
HOPE THIS HELPS!!

4 0

3 years ago

the sum of the interior angle in a polygon is 40,500° what is the number of sides in the regular polygon

larisa86 [58]

Answer:

227 sides

Step-by-step explanation:

The sum of the interior angles of a convex polygon is S=180(n-2) where n is the number of sides. If S=40500, then we have our equation 40500=180(n-2) and we can solve for n:

40500 = 180(n-2)

225 = n-2

227 = n

Therefore, the number of sides in the regular polygon is 227.

4 0

2 years ago

Given the speeds of each runner below, determine who runs the fastest.

alexandr402 [8]

Answer:

Brooke

Step-by-step explanation:

We can solve this by figuring out how far each person runs a second

Stephanie runs 12 feet a second so nothing needs to be done here

Liz runs 306 feet in 38 seconds. To solve for the distance ran in 1 second we can divide (306/38)= around 8 feet

Will runes 1 mile in 491 seconds. A quick search will tell use that 1 mile is equal to 5280 feet and 5280/491 = 10.75

Brooke runs 851 feet in 1 minute or 60 seconds. 851/60 =14.18

Brooke obviously runs the furthest in one second and therefore she's the fastest runner

5 0

3 years ago

Read 2 more answers

Please help The dilation DO,2.5 is applied to triangle ABC below. Use the dilation of triangle ABC and its image to prove that t

viva [34]

A dilation $D_{O,\,k}$ is a dilation with a scale factor, k centered at the origin.

A scale factor, k means that the distance of the image from the the center of dilation is k times the distance of the pre-image from the center of dilation and the size of the image is k times the size of the pre-image.

Given triangle ABC with vertices A(-2, 2), B(1, 2) and C(1, -1), a dilation $D_{O,\,k}$ will result in the image with vertices A'2.5(-2, 2) = A'(-5, 5), B'2.5(1, 2) = B'(2.5, 5) and C'2.5(1, -1) = C'(2.5, -2.5)

Now, consider line AC, the equation of the line is given by

$\frac{y-2}{x-(-2)} = \frac{-1-2}{1-(-2)} \\ \\ \Rightarrow \frac{y-2}{x+2} = \frac{-3}{1+2} = \frac{-3}{3} =-1 \\ \\ \Rightarrow y-2=-(x+2)=-x-2 \\ \\ \Rightarrow y=-x$

Notice that line y = -x is a line passing through the origin which is the center of dilation.

Consider line A'C', the equation of the line is given by

$\frac{y-5}{x-(-5)} = \frac{-2.5-5}{2.5-(-5)} \\ \\ \frac{y-5}{x+5} = \frac{-7.5}{2.5+5} = \frac{-7.5}{7.5} =-1 \\ \\ \Rightarrow y-5=-(x+5)=-x-5 \\ \\ \Rightarrow y=-x$

As an be seen the line AC and the line A'C' is the same line.

4 0

3 years ago

Read 2 more answers

The measure of an angle is twenty-nine times the measure of the supplementary angle. what are the measures of both angles?

riadik2000 [5.3K]

Let's say $x$ is the measure of the first angle and $y$ is measure of the supplement of $x$ . We know that supplementary angles add up to 180°, so $x + y=180$ . We also know that $x = 29y$ . Therefore, $29y+y=180$ . It follows that $y = 6$ , therefore, the first angle is 174° and the second angle is 6°.

5 0

3 years ago