Answer:
$( 51x^2 + x + 29).
Step-by-step explanation:
Amount she had left = original amount - amount spent on the gloves
= 62x^2 + x - 4 - (11x^2 - 33) (note we place the amount spent on gloves in parentheses because we have to subtract the whole amount)
Now we distribute the negative over the parentheses:
= 62x^2 + x - 4 - 11x^2 + 33 ( note - 33 becomes -33*-1 = +33)
Now simplifying like terms:
= 51x^2 + x + 29 (answer).
9h + 15 > 55
- 15 - 15
9h > 40
h > 40/9
h > 4.44444.
any number greater than 4.44444
Answer:
4.5 mph
Step-by-step explanation:
2 m/s = (2 m/s)(60)(60) = 7200 m/h or 7.2 km/hr
if 5 miles = 8 km, then 1 km = 0.625 miles
7.2 x 0.625 = 4.5 mph
Mean = (7+3+10+13+x)/5
(7+3+10+13+x)/5 = 8
(7+3+10+13+x) = 40
x = 40-7-3-10-13 =7
