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3 years ago

Steve stayed after school for extra activities 55% of the 180 school days this year. How

Mathematics

1 answer:

Liula [17]3 years ago

8 0

Answer:

He stayed for 99 days

Step-by-step explanation:

55% of 180 is 99

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800 hm = _____ cm 8 0.08 8,000,000 80,000

il63 [147K]

To solve this conversion factor problem we are going to multiply our original quantity 800hm by conversion factors (expressed as fractions) in order to cancel units until we get centimeters:
We know that 1 hectometer= 100 meters, so our first conversion factor expressed as a fraction is $\frac{100m}{1hm}$
We also now that 1 meter = 100 centimeters, so our second one is $\frac{100cm}{1m}$

Now that we have our fractions, lets multiply our original quantity by them to get our answer in the required units:
$800hm( \frac{100m}{1hm} )( \frac{100cm}{1m})=8000000cm$

We can conclude that 800hm are 8,000,000cm

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3 years ago

a display at an aquarium has sea stars to wolf eels in a ratio 4 : 5. It also has 5/8 as many rockfish as sea stars. there are 4

r-ruslan [8.4K]

The number of sea stars is 64.

What is a ratio?

Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other.

In general, a: b, which can be interpreted as "a is to b," is used to denote a ratio between two quantities, let's say "a" and "b."

This ratio is expressed in fraction form as a/b. We utilize the same method for further simplifying a ratio as we use for further simplifying a fraction.

According to the question,

Ratio of sea stars to wolf eels = 4:5

Number of rock fish= 5/8 (Number of sea stars)

Number of wolf eels - Number of rock fish = 40

Using the given information, we get,

Number of sea stars = 8/5 (Number of rock fish)

On simplification,

Number of wolf eels = 80

So, number of sea stars = (4/5)*80

= 64

Learn more about ratios here:

brainly.com/question/2328454

#SPJ1

7 0

2 years ago

X=y-1 x+2y=5 what is the answer

olga55 [171]

3y=2x=5
hope this helps

8 0

3 years ago

How much would it cost for a 9-hour repair

Rus_ich [418]

It would depend on what someone would be repairing wether it be a computer repair, car repair, plumbing etc.
regardless 9 hours is a very long time so i would not expect it to be too cheap.
hope this helps

4 0

2 years ago

Which algebraic expression has no like terms? Negative x + 4 y minus 6 x + 9 Negative 4 x + y + 4 y Negative 3 x y minus 8 + x y

QveST [7]

Answer:

$- x + 4y - 6x + 9$ ,

$- 3xy - 8 + xy + y^2$ and

$- x + 7 + 3xy - 4y$

8 0

3 years ago

Read 2 more answers