In a math class of 30 students, 17 are boys and 13 are girls. on a unit test, 4 boys and 5 girls made an a grade. if a student is chosen at random from the class, what is the probability of choosing a girl or an a student?

The probability of choosing a girl or an A student is 17/30

Probability is the likelihood or chance that an event will occur. It is expressed as:

Probability = Expected outcome/Total outcome

If the total number of students in the math class is 30 students, hence:

Since there are 13 girls

Pr(choosing a girl) = 13/30

Since 4 more boys or girls made an A grade, the probability of a student to make an A grade = 4/30

Pr(choosing a girl or an A student) = 13/30 + 4/30

Pr(choosing a girl or an A student) = 17/30

Hence the probability of choosing a girl or an A student is 17/30

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5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

answer: 819.89 miles across america

step-by-step explanation: