Ineed to turn this in today amber coaches soccer and volleyball. she coaches both sports for a total of 7 hours each day. the soccer practice lasts 1 hour more than twice as long as the volleyball practice. (3 points) (a) write a system of equations to model the situation. use v for the number of hours amber coaches volleyball in a day and s for the number of hours she coaches soccer. (b) how many hours each day does amber spend coaching each sport?

A) for your system of equations, you use the facts you know. we know that she does a total of 10h coaching each sport, so: v + s = 10and we know that she spends 1h more than twice as long coaching soccer as volleyball: s = 2v + 1b) we can solve our system of equations. first we change the subject of the first one to v: v = 10 - ssubstitute it into the seconds = 2(10 - s) + 1 and then solves = 20 - 2s + 1s = 21 - 2s3s = 21s = 7then substitute s into the first equation: v + 7 = 10v = 3

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Ibelieve the answer is c i worked it out three times but if my answer is wrong someone correct me