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3 years ago

8

Amelia had 26 sea shells. Then, she collected 11 more sea shells. After that, she gave S sea shells to her little sister. Which

of the following shows how many sea shells she has currently? A. 26 + S + 11 B. 26 - 11 - S C. 26 + 11 - S D. 26 + S - 11

2 answers:

Makovka662 [10]3 years ago

3 0

Answer:

C. 26 + 11 - S

Step-by-step explanation:

She had 26 shells

She collected 11 more shells ( that is addition)

26 + 11

Then she gave S shells away ( that is subtraction)

26+11-S

She has 26+11-S

taurus [48]3 years ago

3 0

Answer:

C. 26 + 11 - S

Step-by-step explanation:

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8. The trapezoids are similar. The area of the smaller trapezoid is 131 m2. Find the area of the larger trapezoid to the nearest

kolbaska11 [484]

Answer:

$3,726\ m^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

x----> corresponding side of the larger trapezoid

y----> corresponding side of the smaller trapezoid

$z=\frac{x}{y}$

we have

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$y=12\ m$

substitute

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step 2

Find the area of the larger trapezoid

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z----> the scale factor

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y----> area of the smaller trapezoid

$z^{2}=\frac{x}{y}$

we have

$z=\frac{64}{12}$

$y=131\ m^{2}$

substitute

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$x=(\frac{4,096}{144})(131)$

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Step-by-step explanation:

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