Solve the system by the elimination method. check your work. 2a + 3b = 6 5a + 2b - 4 = 0 make sure there are no spaces in your answer. include a comma in your answer. {( a0 )}

From the computation, a will be 0 and b will be 2.

The equations given are:

2a + 3b = 6

5a + 2b = 4

Multiply equation i by 2

Multiply equation ii by 3

4a + 6b = 12

15a + 6b = 12

Subtract the equations

a = 0

Since 2a + 3b = 6

2(0) + 3b = 6

3b = 6

b = 6/3 = 2

Therefore, a = 0, b = 2.

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percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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