Your final grade in math class is calculated by adding 75% of your semester average to 25% of your final exam grade. if your semester average is 88, what grade must you get on the final exam in order to get an a- for your final grade? (note: an a- is for a final grade of 90-92) show work.

If u get a 96 on the exam u would get a 89.6% average which would round up but if u don’t do rounding then u would have to get a 98 to get exactly a 90% average.

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step-by-step explanation:

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.