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4 years ago

What can multiply itself 3 times to get 125?

Mathematics

1 answer:

Rainbow [258]4 years ago

6 0

5. Because 5 x 5 = 25. 25 x 5 = 125. or 5^3 is 125, which could be proved with a calculator. Hope this helps.

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If a bike travels 5 miles in 20 minutes, how long does it take to travel 25 miles?

faust18 [17]

Answer:

100 minutes

Step-by-step explanation:

To solve this, we can make a proportion.

The bike travels 5 miles in 20 minutes, and 25 miles in x minutes

5/20=25/x

Cross multiply

5*x=20*25

5x=500

Divide both sides by 5. This will cancel out the 5, and leave x by itself.

5x/5=500/5

x=100

There are 60 minutes in 1 hour. If we subtract 60 from 100,

100-60=40

So, this is also equivalent to 1 hour and 40 minutes.

It takes 100 minutes, or 1 hour and 40 minutes, to travel 25 miles.

5 0

3 years ago

2x + 3y + 6 +2x +5y - 3 = having trouble solving

Gemiola [76]

4x + 8y - 3
That is the answer simplified

7 0

3 years ago

Determine whether the polynomial is a difference of squares and if it is, factor it.

patriot [66]

(y-14)(y+14). You just square root 196

3 0

3 years ago

1-2|x-8|=-19 I need help I'm in class right now and I don't know what I should do first to isolate the variable and if I did sub

Vladimir [108]

Answer:

x=18,-2

Step-by-step explanation:

5 0

3 years ago

A survey of 64 informed voters in Kenya revealed the following information:

Elena L [17]

Answer:

i) 12 believe neither of these things.

ii) 3 believe voting is a waste of time but don't believe that they have been abducted by space aliens.

Step-by-step explanation:

I'm going to solve these question treating these events as Venn sets.

I am going to say that:

Event A: Voting is a waste of time.

Event B: They have been abducated by space aliens.

45 believe that Voting is a waste of time

This means that $A = 45$

49 believe that they have been abducted by space aliens

This means that $B = 49$

42 believe both of these things

This means that $A \cap B = 42$

i). How many believe neither of these things?

Total of 64.

At least one is:

$A \cup B = A + B - A \cap B$

With the values we have

$A \cup B = 45 + 49 - 42 = 52$

None:

$64 - 52 = 12$

12 believe neither of these things.

ii). How many believe Voting is a waste of time but don't believe that they have been abducted by space aliens?

This is:

$A - B = A - (A \cap B) = 45 - 42 = 3$

3 believe voting is a waste of time but don't believe that they have been abducted by space aliens.

8 0

3 years ago