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dalvyx [7]
3 years ago
9

A local phone company charges a standard rate of three dollars per call. After 1 minute the charge was $4.50. After 2 minutes th

e rate is $6.00. Susan has $10.00, how long can Susan stay on her phone?
Mathematics
1 answer:
Brrunno [24]3 years ago
6 0

Answer:

4.66 seconds

Step-by-step explanation:

4.50-3.00=1.50

10-3=7/1.50= 4.66

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Graph this parametric equation<br><br> x = 2t y = t + 5, -2 ≤ t ≤ 3
UNO [17]
We are given the following data: <span>x = 2t, y = t + 5, -2 ≤ t ≤ 3. The data is valid since there are three unknowns in this problem and that three equations would suffice to answer the problem. 

We start with the given </span>-2 ≤ t ≤ 3 then substitute y = t +5 by using the limits of the range:

at t = -2 ; y = -2 + 5 = 3
at t = 3, y = 3+5 = 8

for the second equation

at t = -2 ; x = 2*-2 =-4
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we group the points based on their original corresponding t's 

(3,-4) and (8,6) we just have to connect these points along with the internal points in between. The relationship should be linear.
6 0
4 years ago
When Ryan started a daily exercise routine, he lost
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Take his now weight which is 180.4. Divide it by 0.82 because 18% off is 82%. So 180.4/0.82= 220 pounds
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3 years ago
Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!
lisabon 2012 [21]

Answer:

x = 4

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5 0
3 years ago
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A rectangle is bounded by the x-axis and the semicircle y = √(36 – x^2). Write the area A of the rectangle as a function of x, a
Dafna11 [192]
A(x)=2x·√36-x²
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8 0
3 years ago
Write a recursive formula for each sequence given or described below.
valentinak56 [21]

Answer:

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Step-by-step explanation:

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Hence, if a₁ is the salary of Doug in the first year, then  

a₁ =30000

Now, each year Doug will receive a raise of $3000 in his salary.

Hence, in the 2nd year, his salary(a₂) will become ( a₁ +3000) per year.

Again, in the 3rd year, his salary(a₃) will become ( a₂ +3000) per year.

Therefor, in the similar manner the recursive formula for his salary in each year will be given as a_{n} =a_{n-1} +3000 and a₁ =30000 for n = 2,3,4,5,6, ...... {aₙ is the yearly salary of Doug in the nth year} (Answer)

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