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ankoles [38]
4 years ago
14

5x + 3 = 3x + 9 what is the value of x

Mathematics
1 answer:
erik [133]4 years ago
7 0

Answer:

x = 3

Step-by-step explanation:

5x + 3 = 3x + 9

subtract 3 on both sides (cancels out 3) (inverse operation)

5x = 3x + 6

subtract 3x on both sides (cancels out 3x) (inverse operation)

2x = 6

divide both sides by 2 (isolates x) (simplifies)

x = 3

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The perimeter of the base of a square pyramid is 16 feet and it stands 20 ft tall. Calculate the volume.​
Vikentia [17]

Answer: 1706.67 feet

Step-by-step explanation:

Formula: Volume = \frac{1}{3} \alpha^{2}h

a is the length of the base's edge and h is the height. Since 16 is the length we would square it as it is the length, then we would multiply it by the height which is 20 ft.

<u>Steps: Multiply</u>

Volume = \frac{1}{3} \alpha^{2}h

= \frac{1}{3} * 16^{2} * 20

= 1706.67 feet

~I hope I helped you :)~

6 0
3 years ago
Where the square root of 7 be located on the number line below?
Semmy [17]

Answer:  p and q

Step-by-step explanation: 2.64 x 2.64 = 6.9696

7 0
4 years ago
Tommy can lay a brick walkway by himself in 12 hours. Robert does the same job in 10 hours.
Lapatulllka [165]

Answer:

5 5/11 hours

Step-by-step explanation:

So, there is a trick to doing this.

You would first need to get their work rate into the same measurements.

That's why we will find out how much they each work in one hour.

Tommy does 1/12 of the work in one hour while Robert does 1/10.

Here we can add them both up to make 11/60.

They finish 11/60 of the work in one hour.

They finish the job in 5 5/11 hours.

8 0
3 years ago
Let
frutty [35]
Here is the answer in comma-separated list.

  (5, 10) , (10,15), (15, 20) (20, 25) (25, 300 (30, 35)

You need 5 dimes while having 10 or 25

4 0
3 years ago
PLEASE HELP, MARKING BRAINLIST!
Roman55 [17]

Answer:

2 miles

Step-by-step explanation:

because they completed the loop twice:1x2=2

3 0
3 years ago
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