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RideAnS [48]
3 years ago
13

The Ironman endurance race has a 2.4 miles swim. Javier can swim 0.5 miles in 20 minutes. If he can continue this pace, it will

take him hours to finish the swim event.
Mathematics
1 answer:
Dafna1 [17]3 years ago
7 0

Given :

The Ironman endurance race has a 2.4 miles swim.

Javier can swim 0.5 miles in 20 minutes.

To Find :

How much time in hours it takes to complete the race.

Solution :

Speed of Javier :

s=\dfrac{2.4}{\dfrac{20}{60}}\ mph\\\\s= 7.2\ mph

Let, time taken to cover 2.4 miles is t .

So,

t = \dfrac{2.4}{7.2}\ hours\\\\t = 0.33\ hours

Hence, this is the required solution.

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josh and Anthony have a lemonade stand.They charge $1 for 2 cups of lemonade.they sell 14 cups each afternoon.is it reasonable t
Llana [10]
No beacause it's 2.

Hope this helps :)
4 0
3 years ago
Si n es un número impar, ¿cuál de las siguientes opciones representa un número par? a) 2n +1 b) n (n + 2) c) n + (n-1) e) 2 (n +
emmainna [20.7K]

Answer:

Option E) is correct

If n is an odd number then 2(n+1) represents an even number.

Step-by-step explanation:

Let X=set of all odd numbers

that is X={\{1,3,5,7...}\}

Let Y=set of all even numbers

that is Y={\{2,4,6,8...}\}

Verify that 2(n+1) represents an even number where n is an odd number:

Put n=1 in 2(n+1) we get

2(1+1)=2(2)=4

Put n=3 in 2(n+1) we get

2(3+1)=2(4)=8

Put n=5 in 2(n+1) we get

2(5+1)=2(6)=12

and so on.

From above results we get 2(n+1) represents an even number and is belongs to the set Y when n is an odd number.

Therefore Option E) is correct

If n is an odd number then 2(n+1) represents an even number.

5 0
3 years ago
Need help with these two
DiKsa [7]
Am sorry I really need this point sorry again
4 0
3 years ago
Help me pls pls pls ​
cestrela7 [59]

Answer:

I guess the answer is A.

\frac{1}{5}

4 0
3 years ago
Find the surface area of a square pyramid with base edges of 8 feet. The height of each lateral face is 10 feet. Explain or show
Zina [86]

Answer:

224 im pretty sure

Step-by-step explanation:

area of a triangle= base x height / 2

if we plug the values from the problem into the equation, we get 8 x 10 / 2 which simplifies into 80 / 2, which is 40. because this is a square pyramid, we know it has 4 triangles, so we multiply 40 by 4, which is 160. now, we find the area of the square, which can be found with the equation length x width. since all sides of square are equal, the equation becomes 8 x 8, which is 64. finally, we add the area of the triangles to that of the square, and we get 224. hope this helps!

6 0
3 years ago
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