Answer:A
Step-by-step explanation:
Hello! So we are talking about $82.50 earned for 7 ½ hours of work. 7 ½ is equivalent to 7.5. To find the rate of pay, all you have to do is divde the amount earned by the number of hours worked. 82.50/7.5 is 11. Let's check it by multiplying to make sure it works. 11 * 7.5 is 82.5. 82.50 = 82.5. There. Your rate of pay is $11 per hour.
Everyday Andrea is jumping 7 more times than the last so on the 19th day she will have jumped 133 times I believe
Answer:
Step-by-step explanation:
{3 x + 4 = y, 3 x = 4 y + 11}
{y = 3 x + 4, y = (3 x)/4 - 11/4}
{2 (3 x - y) = -8, 4 y - 3 x = -11}
