Answer:
8 hours
Step-by-step explanation:
Using the relationship
speed =
=
= 42
travelling at a rate of 42 mph , then
time =
=
= 8 hours
38 weeks times 7 pieces of homework equals 266 pieces per student in a school year
38 × 7 = 266
Answer:
<h2>9</h2>
Step-by-step explanation:
Step one:
given
Let the number of tests graded be g = 27
time taken t = 3 hours
Required
The constant relating the time and the number of tests
Step two:
<em>"The constant of variation is the number that relates two variables that are directly proportional or inversely proportional to one another."</em>
so that the direct variation is
g∝kt
g=t/k
k= g/t
k=27/3
k=9
Answer:
just ask your question and post it and somebody will help with the answer
Step-by-step explanation:
Answer:
a=1
Step-by-step explanation:
7(5a-4)-1=14-8a
Distribute
35a - 28 -1 = 14 -8a
Combine like terms
35a -29 = 14 -8a
Add 8a to each side
35a+8a -29 = 14 -8a+8a
43a -29 = 14
Add 29 to each side
43a -29+29 = 14+29
43a = 43
Divide each side by 43
43a/43 = 43/43
a =1