2 years ago

In a project there are 560hrs

Mathematics

1 answer:

Ivahew [28]2 years ago

6 0

Answer:

560hrs

Step-by-step explanation:

1day=24hrs

560hrs=(560÷24)days

=23.333days

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An animal shelter has 24 puppies. If the puppies are 32% of the total dog and cat population, how many dogs and cats are in the

34kurt

population *32% = 24

population *.32 = 24

population = 24/.32

population = 75

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3 years ago

Riley and Erik have earned a total of 135 tokens to buy items in the school store. The ratio of the number of tokens that Riley

lisabon 2012 [21]

Answer:

Riley has 72 tokens

Step-by-step explanation:

System of Equations

We have two conditions for the tokens Riley and Erik have earned. Let's call x and y to the number of tokens of Riley and Erik respectively. The first condition states that

$x+y=135$

Solving for y

$y=135-x$

The second condition is that the ratio of the number of tokens that Riley had to the number of tokens that Erik has is 8 to 7. It's written as

$\displaystyle \frac{x}{y}=\frac{8}{7}$

Or equivalently

$7x=8y$

Replacing y from the first equation

$7x=8(135-x)$

Operating

$7x=1080-8x$

Simplifying

$15x=1080$

$\boxed{x=72}$

Riley has 72 tokens

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3 years ago

Chuck runs laps around a track. The table shows how long it takes him to run different numbers of laps. How long would it take C

Vika [28.1K]

It would take him 25 minutes to run 5 laps

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3 years ago

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The diagram shows a trapezium. Work out the area of the trapezium.

pantera1 [17]

Answer:

32cm^2

Step-by-step explanation:

the formula for the area of a trapezois is S=(10+6)/2*4=32

5 0

3 years ago

Simplify this expression. -2 < -1.5p - 8

morpeh [17]

-2 < -1,5p - 8

-1,5p - 8 > -2

-1,5p > -2 + 8

-1,5p > 6 / : (-1,5)

x < 4

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3 years ago