Answer:
y=-3x-12
Step-by-step explanation:
Plug into equation y=mx+b
3=(-3)-5+b
Simplify
3=15+b
Subtract 15 from both sides
-12=b
Add slope and y-intercept into base equation
y=-3x-12
Answer:
67.3
Step-by-step explanation:
Since you can only round to one decimal point we look at the last digit which is 8 thus we round up to 67.3
Answer:
2,890,000,000 becomes 2.89 x 10⁹. that's an example
Answer:
Step-by-step explanation:
p = kd/u
p varies directly with d, p=md
p varies inversely with u, p=n/u
put them together
p=kd/u
as d goes up, p goes up. as u goes up, p goes down
Answer: Alonzo sent 15 messages
Kala sent 22 messages
Bill send 60 messages
Step-by-step explanation:
Let x represent the number of messages that Alonso sent during the weekend.
Bill sent 4 times as many messages as alonzo. It means that the number of messages Bill sent is 4x.
Kala sent 7 more messages than alonzo. It means that the number of messages Kala sent is x + 7
Kala, bill alonzo sent a total of 97 text messages during the weekend.
It means that
x + 4x + x + 7 = 97
6x + 7 = 97
6x = 97 - 7 = 90
x = 90/6
x = 15
The number of messages that Bill sent is
4 × 15 = 60
The number of messages that Kala sent is
15 + 7 = 22