Question

I've been on this one for 30 minutes, help? Solve 8t + 16 > 16t - (12t - 20).
A. {t| t > 1}
B. {t| t > -1}
C. {t| t < 4}
D. {t| t > 4}

Answer 1

not that one sorry
The measure of an acute angle is less than 90 degrees. If an acute angle measures 3x - 15, then the inequality to represent its measure is 3x - 15 < 90. Solve to find the measure of x.
A. x < 25
B. x < 35
C. x < 45

Answer 2

Just solve x,
3x-15<90

3x<15+90

3x<105

(3x)/(3)<(105)/(3)

x<(105)/(3)

x<35

Answer 3

measured angle < 90
and the measured angle = 3x-15
so combine them, you'll get
3x-15<95
3x<95+15
can you solve it yourself?