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Ostrovityanka [42]
3 years ago
10

Of the 15-year-olds at a karate school, 5 have black belts and 9 have brown belts. Among the 16-year-olds, 13 have black belts a

nd 19 have brown belts. Which age group has a lower ratio of black belts to brown belts?
Mathematics
1 answer:
Effectus [21]3 years ago
5 0

Answer:

the 15 year olds do

Step-by-step explanation:

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You start hiking at an elevation that is 80 meters below base camp.
Arte-miy333 [17]

Answer:

You are now 38 m below base camp.

Step-by-step explanation:

Consider the provided information.

You start hiking at an elevation that is 80 meters below base camp.

Now your initial location is 80 m below base camp, that can be represents as: -80

Now you increase your elevation by 42.

So you go up by 42.

In other words, you get the equation -80+42 = -38.

Since a negative value is below the base camp, this means that you are now 38 m below base camp.

6 0
2 years ago
Y= 2x+1 Graph this line
maksim [4K]

Answer:

look up desmos graphing calculator! you're welcome x

Step-by-step explanation:

3 0
2 years ago
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Mary estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error fo
Eduardwww [97]

Answer:

The percent error is 40%.

Step-by-step explanation:

5 (actual time) - 3 (estimated time) = 2

2 divided by 5 (actual time) = 0.4

0.4 x 100 = 40%

6 0
2 years ago
The perimeter of a square is equal to four times the length of a side. Write the direct v variation equation that represents the
sveticcg [70]

Answer: y=4x

Step-by-step explanation:

A direct variation equation has the form:

y=kx

Where <em>k</em> is a constant.

By definition, we know that the perimeter of the square is the sum of the lengths of its sides or, as all the sides are equal, you can multiply the lenght of any side by 4.

 Then, knowing that <em>y</em> is the dependent value and <em>x</em> the independent value and the constant <em>k=4, </em> you can write the following direct variation equation that represents the situation.

y=4x

4 0
3 years ago
Answer this correct
Anarel [89]
The area is actually 52.5
5 0
2 years ago
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