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Paha777 [63]
3 years ago
5

Linda purchase a prepaid phone card for $30. Long distance calls cost $.17 a minute using this card when do use her card. Linda

use her card only to make a long distance call if the remaining credit on her card is $22.52, how many minutes did her call last
Mathematics
1 answer:
balandron [24]3 years ago
7 0

Answer: her call lasted for 44 minutes

Step-by-step explanation:

Linda purchase a prepaid phone card for $30. This means that the credit on her card is $30.

Long distance calls cost $0.17 each. Linda use her card only to make a long distance call. Assuming she made a total of x minutes of long distance calls, the cost would be $0.17x. The amount remaining on her card will be

30 - 0.17x

if the remaining credit on her card is $22.52, the number of minutes,x that the call lasted will be

22.52 = 30 - 0.17x

0.17x = 30 - 22.52

0.17x = 7.48

x = 7.48/0.17 = 44

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The graph of 3x - 2y = 6 does not pass through? <br><br> (4,-3)<br> (4/3,-1)<br> (-2,-6)
victus00 [196]

(4,-3) does not pass through the graph

If you put (4, -3) into the equation you get 18

If you put (4/3, -1) into the equation you get 6

If you put (-2, -6) into the equation you get 6

3 0
3 years ago
Jaime placed $2800 in a savings account which earns 4.3% interest compounded annually. How much will she have in the account aft
Rasek [7]

Answer: $4840

Step-by-step explanation:

A = p(1+r/n)^nt

A = 2800(1+0.043)^13

A = 4840

7 0
3 years ago
Find the slope of the line that passes through (10,8) and (8,0).​
N76 [4]

Answer:

The slope of the line that passes through points ( -10, -8 ) and ( -8, -16 ) is -4.

Explanation:

Points given = ( -10, -8) and ( -8, -16)

Slope = ?

( -10, -8 ) : x1 = -10 and y1 = -8

( -8, -16 ) : x2 = -8 and y2 = -16

We know,

slope = y2 - y1 / x2 - x1

Slope = -16 - ( -8) / -8 - (-10)

slope = -16 + 8 / -8 + 10

slope = -8 / 2

slope = -4

Therefore,  slope of the line that passes through points ( -10, -8 ) and ( -8, -16 ) is -4.

Step-by-step explanation:

3 0
3 years ago
Josh works as a tutor for $9 an hour and as a waiter for $8 dollars an hour. This month, he worked a combined total of 101 hours
katovenus [111]
<h3>Answer:   9t+8(101-t)</h3>

Work Shown:

t = number of hours tutoring

101-t = number of hours working as a waiter

The expressions t and 101-t add to 101.

9t = amount earned as a tutor, at $9 an hour

8(101-t) = amount earned as a waiter, at $8 an hour

9t+8(101-t) = total amount earned from both jobs

This does not account for taxes or other fees. Optionally, you can distribute the 8 through the (101-t) terms, then combine like terms to simplify.

6 0
3 years ago
A pencil box and a notebook together cost $6.28 the notebook cost $0.70 more than the pencil box . How much does the notebook co
11111nata11111 [884]
Well, if y is the notebook cost, well x+y=6.28, x+x+0.70=6.28, 2x=5.58, x=2.79.
The pencil box costs $2.79, while the notebook costs $3.49.
6 0
3 years ago
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