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enyata [817]
3 years ago
6

Jane’s mobile phone plan charges $0.05 per minute at daytime rates before 8 p.m. and $0.03 per minute at nighttime rates after 8

p.m. A conference call costs 1.5 times the normal rate. Calculate the cost of a conference call lasting from 7 p.m. to 8:30 p.m.
Minutes at daytime rate:
Minutes at nighttime rate:
Total cost:
Mathematics
1 answer:
Sonja [21]3 years ago
8 0

Answer:

minutes at daytime rate: 3.00

minutes at nighttime rate: $2.70

total cost of call: $8.55

Step-by-step explanation:

split up the hours so you have the 5 cent charge per minute for 1 hour and you have the 3 cents a minute for an hour and a half after 8.

multiply 5 cents a minute by 60 to get the amount of money for the first hour($3.00),

next multiply 3cents a minute by an hour and a half (90 minutes) to get $2.70

next add the money together to get $5.70 and multiply that by 1.5 to get $8.55

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Well there are 12 inches in 1 foot so
12x9=108
so
111-108=3
so 
The average length of a female white beaked dolphin is 9 feet and 3 inches.
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Which angles are congruent?? (Look at the picture)
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A. DEF=EDF

Step-by-step explanation:

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3 years ago
Ax-bx+y=z the formula that could be used to find x
Illusion [34]

ax-bx+y=z the formula that could be used to find x

Answer:

<h2>x=z−y/a−b</h2>

5 0
3 years ago
Read 2 more answers
What is the standard form of the equation with endpoints of a diameter at the points (1,8) and (-3,2)?
tekilochka [14]

Answer:

Step-by-step explanation:

i think you are talking about the diameter of the circle.

equation of the circle is

(x-1)(x+3)+(y-8)(y-2)=0

x^{2}-x+3x-3+y^{2}-8y-2y+16=0

or x^{2}+y^{2}+2x-10y+13=0

8 0
4 years ago
Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 4-x and y = 2x + 3 intersect are the s
ale4655 [162]
Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 4-x and y = 2x + 3 intersect are the solutions of the equation 4-x = 2x + 3.

Because the point where the graphs intersect is a point that meets both rules (functions) y = 4 - x and y = 2x + 3 meaning that y from y = 4 - x equals y from 2x + 3 and also both x have the same value.

Part B: Make tables to find the solution to 4-x = 2x + 3. Take the integer values of x between -3 and 3.

x values    4 -x         2x + 3

-3              4-(-3)=7     2(-3)+3 =-3
-2              4-(-2)=6     2(-2)+3 =-1
-1              4-(-1)=5     2(-1)+3 = 1
0                4-0=4        2(0)+3 = 3
1                4-1=3         2(1)+3=5
2                4-2=2        2(2)+3 = 7
3                4-3=1        2(3)+3 = 9

The the solution is between x = 0 and x =1

Part C: How can you solve the equation 4-x = 2x + 3 graphically?

Draw in a same graph both functions  y= 4 - x and y = 2x +3.

Then read the x-coordinates of the intersection point. That is the solution.

3 0
3 years ago
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