Answer: a. 45 = k
b. d/t = 45
c. d = 45t
<u>Step-by-step explanation:</u>
The constant of proportionality (k) equals y divided by x if it is a direct variation. In the given problem, y is represented by distance (d) and x is represented by time (t).

Answer:
The actual distance between the two houses is:
3.2 km
Step-by-step explanation:
Proportions:
1cm ⇔ 100000 cm
3.2 cm ⇔ W cm
W = 3.2*100000/1
W = 320000 cm
1 km = 100000 cm
320000cm = 320000/100000 = 3.2km
Answer:
837150
/7
Step-by-step explanation:
459(
569
/7
)+997
=
830171
/7
+997
=
837150
/7
(30 1/2) / (3 3/4) =
(61/2) / (15/4) =
61/2 * 4/15 =
122/15 =
8 2/15 hot dogs were eaten in 1 minute <==
Answer:
1/81
Step-by-step explanation: