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3 years ago

How can x + 4 = 3x + 12 be set up as a system of equations?

Mathematics

1 answer:

lakkis [162]3 years ago

3 0

That would be Option C (Answer).

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Look at the multiples of 4 that have an odd number in the tens place what values do they have

VladimirAG [237]

Answer: The values in the ones place are always a 2 or a 6

<u>Step-by-step explanation:</u>

$04\\08\\ \rightarrow 12 \leftarrow \\ \rightarrow 16\leftarrow \\20\\24\\28\\ \rightarrow 32 \leftarrow \\ \rightarrow 36\leftarrow \\40\\44\\48\\ \rightarrow 52\leftarrow \\ \rightarrow 56\leftarrow \\60\\64\\68\\ \rightarrow 72\leftarrow \\ \rightarrow 76\leftarrow \\80\\84\\88\\ \rightarrow 92\leftarrow \\ \rightarrow 96\leftarrow \\100$

3 0

3 years ago

Write an explicit formula for an,the Nth term of the sequence 4,12,36

Rudik [331]

Answer:

$3^{n}+3^{n-1}$

Step-by-step explanation:

Since the sequence is geometric (it multiplies the previous number each time). The nth term sequence would be $x^n + yn$

Because the sequence multiplies by 3 each time, The base number in that equation would be $3^n +yn$ .

So $3^n$ of the equation would be:
$3, 9, 27$ .

Compare the 2 equations:
4, 12, 36

3, 9 ,27

The difference between the 2 equations is: 1, 3, 9 which itself is a geometric sequence so the nth term of this new equation is: $3^{n-1}$ .

Combine these 2 equations together and you get:

$3^{n}+3^{n-1}$ .

6 0

2 years ago

A healthy human heart beats about 1,533,000 times in a year. A sparrow's heart beats about 241,776,000 times in a year.

VashaNatasha [74]

Answer: A

Step-by-step explanation: you go 10 to the 8th^, and 10 to the 6th^

3 0

3 years ago

Solve x^2–10x+25=35 for x

Nataliya [291]

First you need to subtract 35 to get one equation =0.

x^2-10x-10=0 then use the quadratic formula (let me know if you need the formula of need to see these steps)

and solve to = approximately 8.87 and 1.12

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4 years ago

The price of a gallon of gasoline is $3.15. The price when Ryan's mother started driving was of the current price. What was the

Xelga [282]

Answer:

2/7, $0.23

Step-by-step explanation:

5 0

3 years ago