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Veseljchak [2.6K]
2 years ago
12

The difference of three times a number and a second number is two. The sum of the two numbers is fourteen. What are the two numb

ers?
Mathematics
1 answer:
kolezko [41]2 years ago
3 0

Answer:

x=4

y=10

Step-by-step explanation:

3x-y=2

x+y=14 are the 2 equations

you do the elimination process to get 4x=16

which x=4

then you plu 4 into either equation to get y=10

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Angle AOC has what measurement according to the protractor? A. 150° B. 50° C. 30° D. 130°
maxonik [38]

Answer:

∠AOC  = 50°

B is correct.

Step-by-step explanation:

In the given figure of protractor measure the ∠AOC

Please find the attachment of protractor.

OA is horizontal line which is base of protractor.

In angle AOC, two legs OA and OC

OA is base of protractor. OC another leg.

Now we see position of leg OC of angle AOC.

∠AOC  is acute angle. So, see the number bottom of protractor.

Hence, the measure of ∠AOC  is 50°

7 0
3 years ago
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2) Tara is trying to find the nth term of the arithmetic sequence 5,8,11, and 14…. Which expression can Tara use to find the nth
juin [17]

Answer:

Below in bold.

Step-by-step explanation:

Nth term an = a1 + d(n - 1)   where a1 = term 1 and d = common difference.

Here a1 = 5 and d = 8-5 = 3.

So an = 5 + 3(n - 1)

15th term a15

=  5 + 3(15 - 1)

= 5 + 42

= 47.

4 0
2 years ago
The ratio of green marbles to Yellow marbles in Diego bag is equal to 2 to 5 what percent of the marbles in the bags are green m
muminat
I believe the answer is 40% 

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4 0
3 years ago
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Please select the best answer from the choices provided
Ira Lisetskai [31]

<u>Answer:</u>

The correct answer option is c. \frac{1}{9a^2}.

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

We are given an expression (27a^{-3})^{-\frac{2}{3} } and we are supposed to simplify it.

We can also write (27a^{-3})^{-\frac{2}{3} } as (\frac{3^3}{a^3} )^{-\frac{2}{3} }.

We know the power rule (a^m)^n=a^{mn} which means that to raise a power to a power you need to multiply the exponents.

So multiplying the exponents to get:

\frac{3^{(3.-\frac{2}{3})} }{a^{(3.\frac{2}{3})} }\\\\\frac{3^{-2}}{a^2}\\ \\\frac{1}{3^2a^2} \\\\\frac{1}{9a^2}

Therefore, the correct answer option is c. \frac{1}{9a^2}.

4 0
3 years ago
Anna graphs y=4/5x+5 as shown. Select the statements that identify errors,if any,on Anna’s graph
mart [117]

Answer:

where is the graph????

Step-by-step explanation:

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3 years ago
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