1.Make 6 1/4 into an irrational fraction. (25/4)
2.Make 3 1/20 into an irrational fraction. (61/20)
3.Multiply the first number (25/4) by the second number's reciprocal (20/61)
4.Get 500/244
5.Simplify to 125/61
6.Turn into mixed number (2 3/61)
*A reciprocal of a fraction is the opposite of a fraction. eg. 2/5 is 5/2 and 6/3 are 3/6*
Answer:
A. 1,500m
B. 2000m
C. 1875m
Step-by-step explanation:
A. Here, we simply substitute the value of t in the equation.
t = 5min
V(t) = 400 - 20t
= 400 - 20(5)
= 400 - 100 = 300m/min
Now we know that distance = speed * time = 300 * 5 = 1,500m
2. Substitute t = 10
V = 400 - 20(10) = 400 - 200 = 200m/min
Distance = speed * time = 200 * 10 = 2000m
3. Here we need to calculate time
Rearranging the equation:
20t = 400 - V(t)
20t = 400 - 250
20t = 150
t = 150/20 = 7.5min
Distance traveled = 250 * 7.5 =1875m
<span>(123 + 42 + 7) + (33 − 122 − 10)
= 172 + (- 99)
= 172 + 99
= 271 answer</span>
2(-3)2 -5(4). -12 -20= -32. It's this because you plug -3 and 4 into x and y. Then if you answer it out it equals -32