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worty [1.4K]
3 years ago
15

You travel at an average speed of 20 km/h in a straight line to get to your grandmother's house. It takes you 3 hours to get to

her house. How far away is her house from where you started ?
Mathematics
1 answer:
Nuetrik [128]3 years ago
4 0

Distance = Speed x Time

Therefore distance = 20 x 3

Grandma's house is 60 km away from where you started.

You might be interested in
What is the surface area of the figure shown? (use 3.14 for pi)
SpyIntel [72]

This is a combination of the formula of several figures.

The first one is the bottom of the cylinder AKA a circle.
The second one is the cylinder - the bottom and the top.
The third one is a cone without a bottom.

The first one can be written like this: r^2*3.14 where r is the radius of the circle
The second one is written like this: 2*3.14*r*h where r is the radius, and h the height
The third one is written like this: l*r*3.14

After this you just have to input the values. 
bottom        cylinder        Cone             (Use calculator if possible)
(3^2*3.14)+(2*3.14*3*5)+(6*3*3.14)=
28.26 + 94.2 + 56.52 = 178.98 in^2

The correct answer is 178.98 in^2.
Youre welcome. 




EXTRA:

If youre wondering how to find the different formulas, you can search for the full formula, then remove the parts you do not need, by matching them with the formula of the part you want to remove.

Example:
Cylinder:
SA = 2(pi<span> r</span><span> 2</span><span>) + (2 </span><span>pi </span><span>r)* h
</span>In this case, i didnt need the top and bottom, then i look for the formula of a circle.
Circle SA = pi r^2

Is this anywhere in the cylinder? Yes! The first part.
Then we are left with:
2 + (2 pi r)*h
But that 2 looks strangely placed, and with some reason, one quickly understands that it means "top AND bottom", but since we removed the circle surface, we have to remove that part too. 
So the final result of the formula is:
2 pi r h


4 0
4 years ago
Please help me if u can
Gre4nikov [31]

Answer:

What are you trying to figure out? Where the card goes?

Step-by-step explanation:

8 0
3 years ago
3) Three times the sum of four and a number is twice the number.
Anna11 [10]

Answer:

3(4+n)=2n

Hope this helps

4 0
3 years ago
Someone help me solve please !!
Tresset [83]

Answer:

-2.9

Step-by-step explanation:

It's in the picture.

3 0
3 years ago
PLEASE PLEASE PLEASE PLEASE SHOW YOUR WORK
stellarik [79]

Answer:

9.11x10^-28

Step-by-step explanation:

1.67x10^-24 would be .000000000000000000000000167 and 9.11x10^-28 would be .0000000000000000000000000000911 and because it has more zeros in front of it, 9.11x10^-28 would be the smaller mass

I'm 99.99999999999999999% sure this is correct.

6 0
3 years ago
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