What is the value of x in the solution to the system of equations below?

15x-12y=13

30x+9y=4

A. 1/6

B.-2/3

C.-17/3

D. 1/3

Find the value of x. sin x = 0.5 a. 0.0087° b. 30° c. 45° d. 60°

So how many million square kilometers do all the oceans together cover

Find the value of x in the system, using substitution y=2x; 4x-y=-4

What is 85% of 400 horses

Indicate the formula for the following conditions. C (n, r)

The government's claims that students earn an average of $4,500 during their summer break from studies. A random sample of students gave had a sample average of $3,975 and a 95% confidence interval was found to be $3,525 < µ < $4,425.

F (x) = x^2-6x-16 what is the y-intercept

Your job pays $8 per hour. (a) Write an algebraic expression for your pay in dollars for working h hours. (b) What is your pay if you work 36 hours?

Mike is playing a game using a number cube and a quarter. He tosses both at the same time. What are all the possible outcomes during one turn? How many outcomes are in the sample space?

Round 630 to the nearest ten