In simplest form whats the ratio of 18 mins to 1.5 hours

Mathematics

2 answers:

Lina20 [59]3 years ago

6 0

90/18 = 5 so the ratio is 1:5

kobusy [5.1K]3 years ago

3 0

The answer ratio is 1:5

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A building casts a 21-ft shadow and a flagpole casts a 6-ft shadow. If the flagpole is 15 ft tall, how high is the building? Rou

seropon [69]

The solution to the problem is as follows:

<span>We use proportion :

Let the height of building = x ft.

We get x/21 = 15/6

x = 15*21 /6

x = 52.5 ft.

height of bldg = 52.5 ft
</span>
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4 0

3 years ago

Which expression is equivalent to 2n + 3n - 0.32n? A.5.32n

il63 [147K]

Answer:

B. 4.68n

Step-by-step explanation:

Given

2n + 3n - 0.32n

= 5n - 0.32n

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3 years ago

What is the value of h(a) when a = 2 in the

Ivahew [28]

<h3>Answer: 3</h3>

=========================================================

Explanation:

This is the given piecewise function

$h(a) = \begin{cases}3a+2 \text{ when } a > 3\\4a+5 \text{ when } a = 3\\3 \text{ when } a < 3\\\end{cases}$

We can rewrite things like this

$\text{when } a > 3, \ \ h(a) = 3a+2\\\text{when } a = 3, \ \ h(a) = 4a+5\\\text{when }a < 3, \ \ h(a) = 3\\$

I personally prefer this format better because it mentions the inputs first, and that leads to which function definition we go for.

The input a = 2 fits the description of $a < 3$ since $2 < 3$ is a true statement. Therefore we go for the third line and can see that $h(a) = 3$ becomes $h(2) = 3$