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zhannawk [14.2K]
2 years ago
13

Can some explain steps​

Mathematics
2 answers:
dalvyx [7]2 years ago
8 0

Answer: r = 9

Given:

16=10+\sqrt{3r+27}

Step-by-step explanation:

16-10=\sqrt{3r+27}

6=\sqrt{3r+27}

Taking square on bothsides, we get

36=3r+27

3r=36-27

r=\frac{9}{3}

r=3

Mashutka [201]2 years ago
5 0

Answer:

r = 3.

Step-by-step explanation:

16 = 10 + √(3r + 27)

√(3r + 27) = 6

Square both sides:

3r + 27 = 36

3r = 36 - 27 = 9

r = 3.

Check the result:

Left side of the equation = 16

Right side = 10 + √(9 + 27)

                  = 10 + √36 = 16

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hichkok12 [17]

Answer:

37184

Step-by-step explanation:

I used a calculator.

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3 years ago
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459 divided by 3 how to show your work on paper
melomori [17]
Bus stop method. 3 goes into 4 once. Remainer 1. Add that to the 5. Makes 15. 3 into 15 goes 5 times. No remainder. 3 goes into 9, 3 times and no remainer. So 459/3 is 153

7 0
3 years ago
Find an explicit formula for the geometric sequence -1,-7,-49,-343,.... Note : the first term should be d(1) . d(n) =
n200080 [17]

Answer:

<h3>dn = -7^n-1</h3>

Step-by-step explanation:

Given the sequence -1,-7,-49,-343,....

We are to find the nth term of the sequence

dn = ar^n-1

a is the first term = -1

r is the common ration = -7/-1 = -49/-7 = 7

n is the number of terms

Substitute

dn = -1(7)^n-1

dn = -7^n-1

hence the nth term of the sequence is dn = -7^n-1

4 0
3 years ago
Find the value for x? X-5+5x-12=25
levacccp [35]
X-5+5x-12=25
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5 0
3 years ago
A shopping mall parking garage charges $2 for the first half hour and $1.20 for each additional half hour (even if it is under 3
Neko [114]

You can park in the garage for 5 hours 30 minutes

<em><u>Solution:</u></em>

Given that, shopping mall parking garage charges $2 for the first half hour and $1.20 for each additional half hour (even if it is under 30 minutes)

Therefore,

Cost for first half an hour = $ 2

Cost for each additional half an hour = $ 1.20

Let "x" be the number of each additional half hour

Therefore, total cost to pay is given as:

Total cost = Cost for first half an hour + (Cost for each additional half an hour)(number of each additional half hour)

Total cost = 2 + 1.20x

<em><u>Given you have $ 8 in cash</u></em>

8 = 2 + 1.20x\\\\1.20x = 8 - 2\\\\1.20x = 6\\\\x = \frac{6}{1.20}\\\\x = 5

Total hours parked = first half an hour + 5

Thus you can park in the garage for 5 hours 30 minutes

4 0
3 years ago
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