Question:
Diane knows a phone call to a friend costs .25 for the first three minutes and .10 for each additional minute. Let y be the cost of a call that lasts x minutes. Write the slope and an equation relating x and y.
Answer:
Slope = 0.10 or 
Equation relating x and y is y = 0.10x- 0.05
Step-by-step explanation:
Given:
Cost for first three minutes = 0.25 cents
Cost for each additional minute = 0.10 cents
To Find:
The slope and an equation relating x and y = ?
Solution:
Let y be the cost of a call that lasts x minutes
Then,
y = 0.25 + 0.10(x-3)
y = 0.25 + 0.10x- 0.30
y = 0.10x- 0.05-------------------(1)
In the equation
y = mx +b------------------------------(2)
m is the slope
Comparing eq(1) and(2)]
m =0.10 or
<span>1. Jason and Hance bought
a large pizza to eat. Jason ate 5/8 of the pizza. What’s the fraction of the
pizza that was left for Hance? </span>
<span>
8/8 - 5/8 = 3/8 </span>
<span>
Hance ate 3/8 of the pizza which = .375 which is a
terminating decimal. </span>
<span>
2. Yvonne has 1/6 cup of walnuts and 1/6 cup of
dried cherries. How many cups of both does she have?
1/6 + 1/6 = 2/6 = 1/3 </span>
1/3 is equal to .33333, this is an example of a
nonterminating decimal because it never ends. I am hoping that these
answers have satisfied your queries and it will be able to help you, and if
you’d like, feel free to ask another question.
Answer:
(-∞,∞)
Step-by-step explanation:
This function is a line, with a positive slope, that never ends, so the range is negative infinity to positive infinity (non-inclusive).
Answer:
(7x-1)-3(7x-1)
Step-by-step explanation:
First write out the problem
7x^2-22x+3
Next, Factor the expressions
7x^2 - x - 21x + 3
Now factor the whole thing
x(7x-1)-3(7x-1)
Answer:
168
Step-by-step explanation:
2x80 is 160 plus 2x4 is 8 160+8 is 168
