3 years ago

A local gym has 2 pricing options:

Mathematics

1 answer:

DerKrebs [107]3 years ago

4 0

You would have to go 25 times to make it worth getting option b

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A yard is approximately 5.68 x 10-4 miles. How is this number expressed in standard decimal notation?

belka [17]

Answer:

C: 0.000568 miles

Step-by-step explanation:

Essentially, the exponent on the 10 is how many places to move the decimal point, and negative versus positive dictates whether to move it right or left respectively.

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3 years ago

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I need help with 34. Please help if you can. Thank you !

shtirl [24]

Answer:

7200 people

Step-by-step explanation:

Let's say x amount of people tried out.

After round 1: 1/2 x are left.

After round 2: 1/3 (1/2 x) are left

After round 3: 1/4 (1/3(1/2 x))) are left

Each time we multiply by the fraction that are left. By the end we will have

1/6(1/5(1/4(1/3(1/2 x))))

So to find it multiply the denominator out:

$\frac{1}{6}*\frac{1}{5}*\frac{1}{4}*\frac{1}{3}*\frac{1}{2} x\\\\\\\frac{1}{6*5*4*3*2}x\\\\\frac{1}{720}x$

To find x, we set it equal to 10.

$\frac{1}{720}x =10\\x= 10*720\\x=7200$

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3 years ago

In a petri dish, a certain type of bacterium doubles in number every 20

Veronika [31]

The answer is d
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3 years ago

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Simplify. 3(x + 4) please

Sveta_85 [38]

Answer:

3 x + 12

Step-by-step explanation:

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3 years ago

a tree that is 4 feet tall casts a shadow that is 9 feet long find the length of a shadow that is 48 ft tree cast

baherus [9]

Answer:

108 ft long

Step-by-step explanation:

they both form similar triangles like shape

therefore

$\frac{4}{9} = \frac{48}{x}$

$x = \frac{9(48)}{4}$

$x = 108$

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3 years ago