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nirvana33 [79]
2 years ago
12

Three times the sum of some number plus 2 is equal to 6 times the number minus 15.

Mathematics
1 answer:
Levart [38]2 years ago
4 0

Answer:

x=7

Step-by-step explanation:

3(x+2) = 6x-15.

3x+6 = 6x-15

3x = 6x-21

-3x = -21

x = 7

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I NEED HELP ON 2 PLEASEEEEEEEEE
Leto [7]

Answer:

294

Step-by-step explanation:

Scale factor is 3.5 (If you go from the smaller image to the bigger image).

7 x 3.5 = 24.5 feet

since the question is asking you for the answer in inches you have to multiply 24.5 by 12 which gives you 294

7 0
2 years ago
Which polynomial expression represents the area of the outer most square tile, shown below?
Andrew [12]

ANSWER

{x}^{2}  - 6x + 9

EXPLANATION

The outermost square tile has side length,

l = x - 3

The area of a square is given by;

Area= {l}^{2}

We substitite the given expression for the side length into the formula to obtain,

Area= {(x - 3)}^{2}

Area= {(x - 3)}(x - 3)

We expand using the distributive property to obtain;

Area=x {(x - 3)} - 3(x - 3)

This gives us:

Area= {x}^{2}  - 3x - 3x  + 9

Area= {x}^{2}  - 6x + 9

The last choice is correct.

7 0
3 years ago
Read 2 more answers
Help please state testing math.
Tcecarenko [31]

Answer:

i would try Answer A

Step-by-step explanation:

i am not positive tho

7 0
3 years ago
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Jack's school is selling tickets to a spring musical. On the first day of ticket sales the school sold
Tju [1.3M]
Solutions are here.

5 0
2 years ago
A culture started with 4,000 bacteria. After 5 hours, it grew to 4,800 bacteria. Predict how many bacteria will be present after
eimsori [14]
First we need to find k ( rate of growth)
The formula is
A=p e^kt
A future bacteria 4800
P current bacteria 4000
E constant
K rate of growth?
T time 5 hours
Plug in the formula
4800=4000 e^5k
Solve for k
4800/4000=e^5k
Take the log for both sides
Log (4800/4000)=5k×log (e)
5k=log (4800/4000)÷log (e)
K=(log(4,800÷4,000)÷log(e))÷5
k=0.03646

Now use the formula again to find how bacteria will be present after 15 Hours
A=p e^kt
A ?
P 4000
K 0.03646
E constant
T 15 hours
Plug in the formula
A=4,000×e^(0.03646×15)
A=6,911.55 round your answer to get 6912 bacteria will be present after 15 Hours

Hope it helps!
4 0
3 years ago
Read 2 more answers
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