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Goryan [66]
3 years ago
14

Sandra has 1,120 photos. She wants to place them in a photo album. Each page in the album will hold 8 photos. She uses the expre

ssion 1,120 divide by 8 to find out how many pages she needs for her photos.
Mathematics
1 answer:
RSB [31]3 years ago
5 0

Given :

Sandra has 1,120 photos. She wants to place them in a photo album. Each page in the album will hold 8 photos.

To Find :

Number of pages required .

Solution :

Let, number of pages required are x.

Now,

\text{Number of pages required is = }\dfrac{\text{Total number of photos}}{8}\\\\x = \dfrac{1120}{8}\\\\x = 140

Hence, this is the required solution.

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Answer:

The distance between them after 30 minutes is 6.5 km.

Step-by-step explanation:

Speed = \frac{distance}{time}

Sarah's speed = 6 km/hr = 1.6667 m/s

Emily's speed = 10 km/hr = 2.7778 m/s

The measure of angle between their bearings = 105^{o}

After 30 minutes (1800 seconds);

distance = speed x time

Sarah would have covered a distance = 1.6667 x 1800

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Emily would have covered a distance = 2.7778 x 1800

                               = 5000 m

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The distance between them, a, can be determined by applying the cosine rule;

a^{2} = b^{2} + c^{2} - 2bcCos A

   = 5000^{2} + 3000^{2} -2(5000 x 3000) Cos 105

   = 5000^{2} + 3000^{2} -2(5000 x 3000) x (-0.2588)

   = 2.5 x 10^{7} + 9 x 10^{6} + 7764000

   = 41764000

a = \sqrt{41764000}

  = 6462.5073

a = 6462.5 m

The distance between them after 30 minutes is 6.5 km.

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Step-by-step explanation:

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How you make predictions is by finding the ratio of the number of times an event occurs to the total number of trials.

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in a fundraiser, Mrs. Smith pledges $1 for each mile walked . if Sam walks 20 miles how much will Mrs. Smith donate? what is yhe
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