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tatiyna
3 years ago
5

Solve the system by the elimination method. Check your work. 2a + 3b = 6 5a + 2b - 4 = 0

Mathematics
1 answer:
Lyrx [107]3 years ago
4 0
Solve the system by the elimination method.
2a + 3b = 6
5a + 2b - 4 = 0 

multiply thru the top equation by 2
Multiply thru the bottom equation by 3

4a + 6b = 12
15a+ 6b = 12

Subtract and solve for "a":
11a = 0
a = 0

Solve for "b" using 2a + 3b = 6
2*0 + 3b = 6
b = 2
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What is the factorization of the trinomial -x2 - 2x +48​
Whitepunk [10]

The answer will be 48x

5 0
3 years ago
Plsss help me !!!!
Yuri [45]

Answer:

The enrollment after 5 years is 10,724

Step-by-step explanation:

Generally, we can have the depreciation formula written as follows;

A = P(1 - r)^t

A is the number of enrollment in after a certain number of years t

P is the initial population which is 13,500

r is the rate of depreciation which is 4.5% = 4.5/100 = 0.045

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Substituting these values, we have it that;

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A = 10,723.84

4 0
3 years ago
.....................................
Mandarinka [93]

\frac{5}{a + 3} = \frac{3}{a - 2}

5(a - 2) = 3(a + 3)

5a - 10 = 3a + 9

5a - 3a = 9 + 10

2a = 19

a = \frac{19}{2} = 9 \frac{1}{2}

Answer = D.) a = 9 \frac{1}{2}

\textbf{Spymore}​

4 0
3 years ago
I need help with this please
bixtya [17]

Answer:

i think it's c but I'm not 100% sure

7 0
3 years ago
Read 2 more answers
Complete a factor tree and a ladder diagram to find the prime factorization of 54
kodGreya [7K]
     Factor Tree
             54
          6  ×  9
      2 × 3   3 × 3
54 = 2 × 3 × 3 × 3 = 2 × 3³

2|54
  3|27                  → 54 = 2 × 3 × 3 × 3 = 2 × 3³
    3|9
       3
I'm not sure about ladder method... is it the same as upside down division.
Begin with a prime number that will divide into the number.

5 0
4 years ago
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