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2 years ago

Rebecca is 12.5% taller than Debbie. Debbie is 64 inches tall. How tall is Rebecca?

Mathematics

2 answers:

Bas_tet [7]2 years ago

7 0

Answer:

72 inches or 6 ft

Step-by-step explanation:

12.5%=1/8 so 1+1/8=9/8 so Rebecca is 9/8 the heright of Debbie so 64*9/8=72

astra-53 [7]2 years ago

4 0

Answer:

Step-by-step explanation:

To find the % of something simply turn 12.5% to a decimal (.125) then times it by the number you want .125 * 64 = 8

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Answer:

$3.14r^2(h-\frac{1}{3}h_1)$

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2 years ago

What set of reflections would carry hexagon ABCDEF onto itself?

Marianna [84]

When a set of reflections that carry a shape onto itself, it means that the final position of the shape will be the same as its original location

Reflections (a) y=x, x-axis, y=x, y-axis would carry the hexagon onto itself

First; we test the given options, until we get the true option

(a) y=x, x-axis, y=x, y-axis

The rule of reflection y =x is:

$(x,y) \to (y,x)$

The rule of reflection across the x-axis is:

$(x,y) \to (x,-y)$

So, we have:

$(y,x) \to (y,-x)$

The rule of reflection y =x is:

$(x,y) \to (y,x)$

So, we have:

$(y,-x) \to (-x,y)$

Lastly, the reflection across the y-axis is:

$(x,y) \to (-x,y)$

So, we have:

$(-x,y) \to (x,y)$

So, the overall transformation is:

$(x,y) \to (x,y)$

Notice that, the original and final coordinates are the same.

This means that:

Reflections (a) y=x, x-axis, y=x, y-axis would carry the hexagon onto itself