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Nezavi [6.7K]
3 years ago
13

A concrete stepping stone measures 20 square inches. What is the area of 30 such stones

Mathematics
1 answer:
Natalka [10]3 years ago
7 0
The answer is 600. 30•20
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I really need to solve this quick.
anzhelika [568]

Answer:

a)

Theoretical: 10/30 = 1/3

Experimental: 12/30 = 6/15

Step-by-step explanation:

the theoretical probability is if every number was rolled an equal amount of times. as there are 3 options and a number was chosen 30 times, if we divide 30 by 3 we will get the theoretical probability of choosing a 2

30 ÷ 3 = 10

the theoretical probability = 10/30 or simplified 1/3

the experimental probability is the result when one of the numbers from

1 to 3 were actually randomly selected 30 times. the chart shows that the 2 was selected 12 times out of 30 therefore the experimental probability = 12/30 or simplified 6/15

Theoretical:

fraction: 1/3

decimal: 0.33∞

percentage: 33%

Experimental:

fraction: 6/15

decimal: 0.4

percentage: 40%

I hope this was helpful :-)

3 0
2 years ago
An executive invests $26,000, some at 8% and some at 6% annual interest. If he receives an annual return of $1,860, how much is
S_A_V [24]
Let x = amount invested at 8%
 26000 - x = amount invested at 6%

0.08x + 0.06(26000 - x) = 1860

solving the equation you get x = 15000
and subtract that from 26000 you get 11000
8% investment = 15000
6% investment = 11000
5 0
3 years ago
Y=1/3x-3<br> Y=-x+5 <br> How do I solve
ehidna [41]

Since both equations are equal to y, we can just combine them like this:

1/3x-3=-x+5

1/3x=-x+8

4/3x=8 (since x is 1x which is 3/3x)

x=6

Plug x back in:

y=-6+5

y=-1

So x=6 and y=-1

Hope this helped!

4 0
3 years ago
So, how do owls live. Like I need a serious explanation food,water,sleeping,predators,prey. Or give me all you know. But somethi
pashok25 [27]

<span>Owls are found in many different habitats, such as deserts, forests, prairies and even the Arctic tundra. They nest in trees, in holes in the ground, in barns, and in caves. And while many other birds migrate to warmer places during the winter, most owls do not. They live in the same place all year round.</span>
6 0
3 years ago
Read 2 more answers
Can somebody help me with this please
dmitriy555 [2]
Uhhh, kind of an estimated guess but I got $7426.30
4 0
3 years ago
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