Mandy competed in a race that included running and biking. mandy ran 1 3/4 and bicycled 3.6 miles. mandy total time was 0.7 hour what was mandy approximate average speed on miles per hour. a. 3.75 miles per hour. b. 6.87 miles per hour. c. 7.06 miles per hour. d. 7.64 miles per hour

1 3/4 = 7/4 = 1.75 miles (ran);

1.75 + 3.60 = 5.35 miles ( ran and bicycled);

average speed = 5.35 / 0.7 = 7.64 miles per hour;

The correct answer is D.

Step-by-step explanation:

a 10 percent increase

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5