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3 years ago

15

Risa is sewing a ribbon around the sides of a square blanket. Each side of the blanket is 72 inches long, how many inches of the

ribbon will risa need?

1 answer:

vaieri [72.5K]3 years ago

5 0

72*4=288in of ribbon

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vitfil [10]

40 hundreds flats. 400 tens = 4,000. 40 hundreds also equals 4,000.

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What is another way to write the absolute inequality |p|<12?

GaryK [48]

Answer:

$-12$

Step-by-step explanation:

$\left|p\right|$

The interval notation is (-12, 12).

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3 years ago

An animal reserve has 40,000 elk. The population increases 11% a year. How long tell the population is equal to 80,000. If someo

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Answer:

7 years (This answer is to the nearest year)

Step-by-step explanation:

The way you could work this out is by trial and error. 11 % a year means that its population increases by 4400 annually. 40,000 X 1.11^1 gives you the amount it would be after one year (44000). I got the 1.11 because of the percentage (0.11) plus the amount you need to do percentage increase (1). Then all you do is keep on going up till you hit the number you need (80,000) after about 7 years the total would have hit 80,000 and would have actually went past it (83046)

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3 years ago

Simplify <br> A. a to the power of 4 B. 8 <br> C. 10 <br> D. a to the power of 21

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Wait, could you please restate what I'm supposed to answer xD Thank you

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A football player is running the length of a 100 yard long football field. For the first part of the field, he runs at a rate of

notka56 [123]

Answer:

$\frac{2}{5}$ th part of the field is covered in the second sprint.

Step-by-step explanation:

A football player is running the length of a 100 yard long football field.

Let player sprints x yards with the speed = 2 yards per second.

So time taken to cover x yards player will take time = $\frac{x}{2}$ seconds

Now rest distance (100 - x) yards when covered with the speed of 4 yards per second, so time taken to cover this distance = $\frac{Distance}{Speed}$

= $\frac{100-x}{4}$ seconds

Now total time taken by the player can be represented by the equation

$\frac{x}{2}+\frac{100-x}{4}=40$

Now we can solve this equation for the value of x.

$\frac{2x+100-x}{4}=40$

x + 100 = 40×4

x + 100 = 160

x = 160 - 100 = 60 yards

And length of the second part will be = 100 - 60 = 40 yards

Now the fraction of the field covered by the player in second sprint will be

= $\frac{40}{100}$

= $\frac{2}{5}$ or 40%

Therefore, $\frac{2}{5}$ th part of the field was covered in second sprint.

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3 years ago