3 years ago

Why are rates usually written as a unit rate

Mathematics

1 answer:

castortr0y [4]3 years ago

7 0

Because most of the time it doesn't give a unit, so you just write unit rate

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Allen has a photo that is 6 in by 8 in. What will the dimensions of the photo be if he scales it down by a factor of ? (5 points

Irina18 [472]

Answer:

It will be 3 in by 4 in

Step-by-step explanation:

Original dimension is 6 in by 8 in

If he scale it down by a factor of 1/2

The new dimension will be

1/2(6) by 1/2(8)

= 3 by 4

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2 years ago

The population of bacteria can be modeled by the function below, where t represents the time since the population started decayi

Oksana_A [137]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete. I will assume the function is:

$f(t) = 15(0.86)^t$

Required

Determine the rate of decay

In an exponential function $f(x) = ab^x$ ,

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By comparison:

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So, the equation becomes:

$1 - r = 0.86$

Make r the subject

$r = 1 - 0.86$

$r = 0.14$

<em>The rate of decay is 0.14</em>

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3 years ago

Which expressions are equal to 105?

Amanda [17]

Answer:

2•2²×100+5.

Step-by-step explanation:

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2 years ago

Geometry question need help finding the answer.

Xelga [282]

Answer: 1208.96

Step-by-step explanation:

The volume of the cylinder is $(\pi)(4^2)(4)=64\pi$

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So, the total volume is $1008+64\pi=\boxed{1208.96}$

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1 year ago

Rounded what is 489291 rounded to the nearest hundred

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Work:

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2 years ago

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