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GaryK [48]
3 years ago
9

R + 11 + 8r= 29 Show answer

Mathematics
2 answers:
____ [38]3 years ago
6 0

Answer:

r=2

Step-by-step explanation:

r + 8 r + 11 = 29

( 1 + 8 ) r + 11 = 29 9 r + 11 = 29

Now we can isolate and solve for r while always keeping the equation balanced: First, subtract 11 from each side of the equation:

9 r + 11 − 11 = 29 − 11

9 r + 0 = 18

9 r = 18

Now we can divide each side of the equation by 9 to get

r : 9 over 9 = 18 under 9

1 r = 2

r = 2

slavikrds [6]3 years ago
6 0

Answer: r = 2

Steps:  

r + 8r + 11 = 29

9r + 11 = 29

9r + 11 - 11 = 29 - 11

9r = 18

r = 2

plz mark brainliest

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Which binomial is a factor of 8x^2y^3-18y
Musya8 [376]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

8x^2y^3-18y

Apply exponent rule:   a^{b+c}=a^ba^c

8x^2y^3-18y=8yy^2-18y    ∵ x^2y^3=yy^2

                    =4\cdot \:2yy^2+9\cdot \:2y

Factor out common term 2y

                    =2y\left(4x^2y^2-9\right)

We know that the Binomial is an expression that consists of two terms. Thus,

(4x²y²- 9) represents the binomial factor of 8x^2y^3-18y

We can further simplify by Factoring 4x²y² - 9:  (2xy + 3) (2xy - 3)

                      =2y\left(2xy+3\right)\left(2xy-3\right)

Here:

(2xy + 3) and (2xy -3) are the binomial factors of 8x^2y^3-18y as each of them consists of two terms.

6 0
3 years ago
you and your friend start biking to opposite directions from the same point. You travel 108 feet every 8 seconds. Your friend tr
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Answer:

To find your distance apart, you can convert 15 minutes to seconds because that is what the rate is given in.

15 mins x 60 seconds = 900 seconds.

Step-by-step explanation:

In 900 seconds, there are 900/8=112.5 groups of 8 seconds. This means there are 112.5 groups of 108 feet.

112.5 x 108 = 12150 feet

12150 feet/5280 feet is approximately 2.3 miles.

For your friend you take 900/6 = 150 groups of 6 seconds.

150 x 63 = 9540 feet

9540 feet/5280 feet = 1.79 miles

1.79 miles + 2.3 miles = 2.09 miles

You and your friend are about 2.09 miles apart after 15 minutes.

B). If you go 2.3 miles every 15 minutes, that means you travel about 0.77 miles every 5 minutes. If you travel 20 more minutes (40-15-5) that would be 0.77x 4=3.07 miles more

3.07 + 2.3 = 5.37 miles after 40 minutes (you).

Your friend travels 1.79 in 15 minutes, so 1.79/3 = 0.6 miles every 5 minutes

0.6 x 5 (5 x 5 = 25 minutes)= 3 miles

1.79 + 3 miles= 4.79 miles (friend)

4.79 + 5.37 = 10.16 miles

You and your friend are about 10.16 miles apart after 40 minutes.

5 0
3 years ago
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