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
Inessa05 [86]
2 years ago
7

Problem Page Maya purchased a prepaid phone card for $30 . Long distance calls cost 18 cents a minute using this card. Maya used

her card only once to make a long distance call. If the remaining credit on her card is $26.94 , how many minutes did her call last?

Mathematics
1 answer:
Helen [10]2 years ago
8 0
Her call lasted 17minutes

You might be interested in
What function equation is represented by the graph?
kupik [55]

the answer would be ...

f(x) = -5/2x + 4

We know this because the constant in this equation, 4, is the y-intercept!

This means that the number without the variable is <u>where the line intersects the y-axis. </u>

Additionally, the slope is called the "rise over run", but in this case it is negative. At the point, 4, on the y-axis,<u> we go down 5 units (the numerator of the slope) and to the right by 2 units (the denominator). </u>

We find ourselves at where the line intercepts the x-axis!

I hope my explanation isn't confusing and that it is helpful! If you have any questions or concerns, message me! :)

8 0
2 years ago
A model rocket is launched straight upward. The solid fuel propellant pushes the rocket off the ground at an initial velocity of
anastassius [24]

Answer:

a) 72.25sec

b) 6.25secs

c) after 10.5secs and 2 secs

Step-by-step explanation:

Given the height reached by the rocket expressed as;

s(t)= -4t^2 + 50t - 84

At maximum height, the velocity of the rocket is zero i.e ds/dt  = 0

ds/dt = -8t + 50

0 = -8t + 50

8t = 50

t = 50/8

t = 6.25secs

Hence it will reach the maximum height after 6.25secs

To get the maximum height, you will substitute t - 6.25s into the given expression

s(t)= -4t^2 + 50t - 84

s(6.25) = -4(6.25)^2 + 50(6.25) - 84

s(6.25) = -156.25 + 312.5 - 84

s(6.25)  = 72.25feet

Hence the maximum height reached by the rocket is 72.25feet

The rocket will reach the ground when s(t) = 0

Substitute into the expression

s(t)= -4t^2 + 50t - 84

0 = -4t^2 + 50t - 84

4t^2 - 50t + 84 = 0

2t^2 - 25t + 42 = 0

2t^2 - 4t - 21t + 42 = 0

2t(t-2)-21(t-2) = 0

(2t - 21) (t - 2) = 0

2t - 21 = 0 and t - 2 = 0

2t = 21 and t = 2

t = 10.5 and 2

Hence the time the rocket will reach the ground are after 10.5secs and 2 secs

3 0
3 years ago
Sylvie bought 13 bagels and a container of cream cheese.Each bagel cost the same price.The cream cheese cost $2.95.Sylvie spent
Taya2010 [7]
Ok, first set this up as an equation with your given variables. You know that Sylvie bought 1 container of cream cheese, which is $2.95, and you know that Sylvie spent $7.50 <u>(my best assumption is this is the subtotal)</u><u /> on the cream cheese and 13 bagels. As an equation, it would come out as:

7.50=2.95+13(b)

To start solving the algebraic equation, wou can subtract 2.95 on both sides, resulting as 

4.55=13 (b)

Now, to get "b" by itself, you must divide 13 on both sides, resulting as

.35=b

This will answer your question as the cost of 1 bagel would be $0.35 per bagel.
5 0
3 years ago
Read 2 more answers
(7^0)^x = 1 what is x ?
Nataly_w [17]
7^0 = 1
1^x = 1
x = 0
5 0
2 years ago
(gof)(x) = x2 + x + 1
Sever21 [200]

Answer:

the \: answer \: is \: b

Step-by-step explanation:

(gof)x =  {(x + 1)}^{2 }   =  {x}^{2} + 2x + 1

8 0
2 years ago
Other questions:
  • WILL MARK BRAINLIEST PLEASE HELP ASAP. The value of n is a distance of 1.5 units from -2 on a number line.
    14·2 answers
  • Points points points
    6·2 answers
  • There are 1,596 fans at a football match. 3/7 of them are children. How many adults attended the football match?
    13·1 answer
  • Find the missing numbers then write each as a decimal 3/15=1/?=?/10
    15·1 answer
  • Jane must select three different items for each dinner she will serve. The items are to be chosen from among five different vege
    9·1 answer
  • A concrete mason separated 107.25 pounds of sand evenly into 3 containers. How much sand did he put into each container?
    15·1 answer
  • Below is the graph of a trigonometric function. It has a maximum point at (-5, 2.5) and a minimum point at
    10·1 answer
  • Graph each linear equation that passes through the given pair of points. Use graph paper.
    10·1 answer
  • If a circle is divided into 20 angles, what is the measure of each angle in the circle?
    14·3 answers
  • Simplify (8x2 − 1 2x3) − (7x3 − 3x2 1). −5x3 11x2 − 2 5x3 − 11x2 2 x3 2x2 x3 x3 − 2x2 − x3.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!