1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
neonofarm [45]
3 years ago
6

Jessica purchased a 600-minute pre-paid phone card and called her sister at college. After talking to her sister "t" minutes, sh

e had less than 600 minutes on her calling card. (a) Write an equation to determine the number of minutes remaining on the card. (b) Now, suppose she talked to her sister for 65 minutes, determine how many minutes she has left on her card.
Mathematics
1 answer:
Vesna [10]3 years ago
6 0

Answer:

1) 600-t

2) 600-t=65

=>t=535

You might be interested in
How to write two hundred eight thousand five hundred sixty-one in standard form?
mamaluj [8]
<span>704,620 I think this is how it is!
Hope I helped!
</span>
6 0
3 years ago
The length of a rectangle exceeds its width by 3 inches. The area of the rectangle is 70
Semenov [28]

Answer:

70= (x+3)

Step-by-step explanation:

the length of the rectangle  its width by 3 inches, if the width is x,the length will be x+3. so A=LW= 70

To find= 70= (x+3)x

x= 7 or -10

3 0
3 years ago
#2 <br> #3 <br> Need help for my discrete math class
miss Akunina [59]

For (2), start with the base case. When n = 2, we have

(n + 1)! = (2 + 1)! = 3! = 6

2ⁿ = 2² = 4

6 > 4, so the case of n = 2 is true.

Now assume the inequality holds for n = k, so that

(k + 1)! > 2ᵏ

Under this hypothesis, we want to show the inequality holds for n = k + 1. By definition of factorial, we have

((k + 1) + 1)! = (k + 2)! = (k + 2) (k + 1)!

Then by our hypothesis,

(k + 2) (k + 1)! > (k + 2) 2ᵏ = k•2ᵏ + 2ᵏ⁺¹

and k•2ᵏ ≥ 2•2² = 8, so

k•2ᵏ + 2ᵏ⁺¹ ≥ 8 + 2ᵏ⁺¹ > 2ᵏ⁺¹

which proves the claim.

Unfortunately, I can't help you with (3). Sorry!

3 0
3 years ago
Kenny is 5 feet 5 inches while Lamar is 67 inches. Who is taller?
Burka [1]
Lamar is taller because 67 inches =5 feet 7inches
8 0
4 years ago
Read 2 more answers
What is the ratio of 544:336
Leviafan [203]
The GCF is 16 so when I divide both number by that I get 34:21 in lowest terms.
6 0
3 years ago
Other questions:
  • Please help me with this compound interest.
    11·1 answer
  • A dance studio charges an application fee of $75 and $50 per month for membership. This is represented by the linear equation C
    7·2 answers
  • Find the value of two numbers if their sum is 38 and their difference is 8
    6·1 answer
  • Someone help me ASAP!!!!!!
    14·2 answers
  • What is the solution to the proportion?
    7·2 answers
  • ( Help ASAP )<br>What is the equation of the trend line?<br><br><br> N = ____ M + _____
    14·1 answer
  • URGENT HELPPP !!!!!! Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!
    6·1 answer
  • Please help me quick
    5·1 answer
  • Select the statements which could describe the graph of a non proportional relationship.
    8·1 answer
  • Help me out pleaseeee
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!