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d1i1m1o1n [39]
3 years ago
9

An ant went 2 meters away from its nest searching for food. The next time, the ant went 3 meters away. Each successive time the

ant leaves the nest to search for food, the ant travels the sum of the two previous times. How far will the ant travel on his fifth trip?
Mathematics
1 answer:
seropon [69]3 years ago
8 0

Answer:

The first time, the ant went 2m away, then we have a₁ = 2m

The second time, the ant went 3m away, then we have a₂ = 3m

The next time, the ant went a distance equal to the sum of the two previous ones, so we can write it in a general case as:

aₙ = aₙ₋₁ + aₙ₋₂

Only if n > 2.

then the third time, we have n = 3.

a₃ = a₂ + a₁ = 2m + 3m = 5m

a₄ = a₃ + a₂ = 3m + 5m = 8m

a₅ = a₄ + a₃ = 5m + 8m = 13m

This means that in the fifth trip, the ant went 13 meters away from its nest.

And if we consider the fact that the ant must go and return, then it will move a total distance of 13 meters two times, or 2*13m = 26 meters.

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The equation of the line f is y =4/9x+3/2.Line g is perpendicular to f. What is the slope of line g?
tangare [24]

Answer:

-9/4

Step-by-step explanation:

A perpendicular slope is on that is the negative reciprocal. current slope=4/9 and the negative recipocal is -9/4.

7 0
2 years ago
Evaluate 18 + 4 ÷ 2 − 8. (5 points) Group of answer choices 2 8 12 3
cupoosta [38]

Answer:

=12

Step-by-step explanation:

See the steps below:)

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2 years ago
Sue has $2.10 in dimes and nickels. If she has 12 more dimes than nickels, how many of each coin does she have?
Andreas93 [3]
Sue would have 21 dimes and 12 less of 21 is 9, so sue has 9 nickels

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8 0
3 years ago
Aubrey's parents are signing her up for summer camps. If there are 5 weeklong camps to choose from, in how many orders can they
Tems11 [23]

Answer:

This can be done in a total of 10 ways

Step-by-step explanation:

This is a selection problem.

What we are trying to do is to properly select 3 week long camps from the total 5. we are looking for the number of ways in which we can do this.

Now, since this is a selection problem, the proper mathematical term and approach to use is the COMBINATION

Mathematically, having r items to pick from a total n, the number of ways to do this is nCr ways

which is mathematically equivalent to;

n!/(n-r)!r!

now applying this to the problem at hand, what we have is 5C3

= 5!/(5-3)!3! = 5!/2!3! = (5 *4)/2 = 20/2 = 10 ways

3 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
blondinia [14]

Substitute y = 1/5 x + 1 into x + 5y = -15

x + 5y = -15

x + 5(1/5 x + 1) = -15

x + x + 5 = -15

2x = -20

x = -10

Plug in x = -10 into y = 1/5 x + 1

y = 1/5 (-10) + 1

y = -2 + 1

y = -1

(-10 , -1)

Answer is the last one

(-10 , -1)

3 0
3 years ago
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