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Archy [21]
3 years ago
15

Each day, Maria records the number of news articles she reads. Here are her results for the last eight days.

Mathematics
2 answers:
Marta_Voda [28]3 years ago
5 0
The range is 4 and the mode is 6
Sergeeva-Olga [200]3 years ago
3 0
For the range u subtract the maximum and the minimum so 9-5=4 For the mode u add all of the number together then divide by how many numbers u have.
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Answer:

at 12 miles per hour, the bird would travel 202 miles in 16 hours and 50 minutes.

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a house and lot cost $120,000. if the house cost 3 times more than the lot, how much did the house cost?
AleksandrR [38]

Answer:

$90,000

Step-by-step explanation:

We can can use substitution for this. First, we need to create two separate problems that represent this situation. The house and the lot together cost 120000, so we can make the equation h+l=120000. We also know that the house is worth 3 lots, so we can make the equation h=3l. Because h=3l, we can substitute for h, making the equation 3l+l=120000, or 4l=120000. To isolate l, we have to divide both sides by 4. If we do that, we get l=30000. Now, we have to substitute to find h. Our new equation is h+30000=120000. To isolate h, we have to subtract 30000 from each side. If we do this, we get h=90000. That's our answer.

Hope this helps!

7 0
1 year ago
AB = 6x DC = x + 15 AD = 9 BC = 3y Quadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruent. Show tha
ra1l [238]

Answer:

Therefore the lengths of the opposite side pairs.

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Step-by-step explanation:

Given:

Quadrilateral ABCD is a parallelogram

AB = 6x

DC = x + 15

AD = 9

BC = 3y

TO Find:

AB = ?

BC = ?

Solution:

Quadrilateral ABCD is a parallelogram ..........Given

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∴ AB = DC   and AD = BC

substituting the values we get

6x=x+15\\6x-x=15\\5x=15\\x=\dfrac{15}{5}\\ x=3\\and\\9=3y\\y=\dfrac{9}{3}\\ y=3

substituting the x' and 'y' values we get

AB= 6\times 3=18\\and\\BC=3\times 3=9

Therefore the lengths of the opposite side pairs.

C) 18, 9

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