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fredd [130]
3 years ago
6

On Saturday Lindsay walked 3 1/2 mile in 1 and 2/5 hours what was her walking pace in miles per hour write in simplest form

Mathematics
1 answer:
Makovka662 [10]3 years ago
7 0

Answer:

If she walked 3.5 miles in 1.4 hours, then her pace was:

 3.5 miles / 1.4 hours = 2.5 miles/hour

Step-by-step explanation:

To get her pace in miles per hour, you take the number of miles and divide by the number of hours.  

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erica [24]

Answer:

3x^2-288y^2-36

Rewrite -36 as 12×3

Rewrite -288 as 96×3

3x^2+96.3y^2+12.3

factor out common term 3

=3(x^2-96y^2-12)

7 0
3 years ago
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Consider a bag of jelly beans that has 30 red, 30 blue, and 30 green jelly beans. a) How many color combinations of 15 beans hav
igor_vitrenko [27]

Answer:

680

Step-by-step explanation:

Number of red beans = 30

Number of Blue beans = 30

Number of green beans = 30

How many color combinations of 15 beans have at least 6 green beans?

Since at least 6 of the beans must be green,

Then (15 - 6) = 9

Then, the remaining 9 could be either red, blue or green.

Therefore, C(9 + (9 - 1), 3)

C(17, 3) = 17C3

nCr = n! ÷ (n-r)! r!

17C3 = 17! ÷ (17 - 3)! 3!

17C3 = 17! ÷ 14!3!

17C3 = (17 * 16 * 15) / (3 * 2)

17C3 = 4080 / 6

17C3 = 680 ways

5 0
2 years ago
Three times a number increased by ten equal to twenty less than six times a number . find the number​
kiruha [24]

Answer:

the number is 10

Step-by-step explanation:

3x + 10 = 6x-20

20+10=6x-3x

30=3x

x=10

4 0
3 years ago
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What the value of q?
ad-work [718]

Answer:

50°

Step-by-step explanation:

because angles on straight line add up to 180°,

180-130=50 :)

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2 years ago
Solve the following exponential equation <br><img src="https://tex.z-dn.net/?f=3%20%7B%7D%5E%7B2x%20%7D%20%20-%209%20%3D%200" id
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Answer:

x = 1

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3^{2x}-9=0

Add 9 to both sides of the equation:

\implies 3^{2x}-9+9=0+9

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\textsf{Apply exponent rule} \quad a^{bc}=(a^b)^c:

\implies \left(3^2\right)^{x}=9

\implies9^{x}=9

\textsf{Apply exponent rule} \quad a=a^1:

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\implies x=1

8 0
1 year ago
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