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myrzilka [38]
3 years ago
5

Can someone help me with this math problem

Mathematics
2 answers:
trapecia [35]3 years ago
5 0

Answer:

<em>n=650. </em>The customer made 650 calls within the month.

Step-by-step explanation:

To solve this problem we can set it up as the equation 0.05n+18=50.5.

The reasoning of doing is because adding the monthly fee and then the amount of calls (n) times 0.05 will give us the value of n in the equation .

First we want to get rid of 18 so subtract 18 from both sides to then get 0.05n=32.5. Next we want to isolate n by dividing 0.05 on both sides of the equation which will then give us the new equation n=650.

zepelin [54]3 years ago
3 0

Answer:

$50.50 = 18 + 5n

Step-by-step explanation:

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What are the sides of the rectangular prisms ?
8 0
3 years ago
Which of the following is an example of a method that can be used to model 45%? Select all that apply.
Yuki888 [10]

Answer:

B

Step-by-step explanation:

Since there are 100 squares and you shaded 45 that is 45/100 which is equal to 45%

8 0
2 years ago
23. Kelvin travelled of his journey at 45 km/h and of the remaining journey at 90 km/h. The rest of his journey was completed in
Sonja [21]

Answer:

4.6 hours

Step-by-step explanation:

we first need to calculate the total distance he covered and total time taken whole for the journey.

Distance= speed X time

time = Distance/speed

let the total distance be X. he covers 2/5 if the journey first.

2/5 = 0.4

Time = 0.4x/45 hours

the remaining journey is 3/5x

he covers 1/3 X 3/5= 0.2x

time taken = 0.2/90 X hours

the remaining distance = 100× 1.2 = 120km

we add 0.4x + 0.2x to get the fraction he had covered

0.6x.

the remaining distance was X - 0.6x = 0.4 X

thus 120 km represents 0.4x of the journey

we calculate now the value of X

0.4x = 120

X = 300km

Total time taken = 0.4x/45 + 0.2/90 + 1.2 hours

replace X to get time

2.7 hours + 0.7 hours + 1.2 hours

= 4.6 hours

3 0
1 year ago
HELP ME PLEASE!!
DiKsa [7]
C=A+B
C₄₁= row=4;  column=1
C₄₁=A₄₁+B₄₁         
=2(7)-3(4)
=14-12
=2

Answer: C₄₁=2
5 0
3 years ago
If 9 were subtracted from three times a number, the result would be the same as if 4 were added to twice the number. what is the
amid [387]
3x-9=2x+4
3x-9+9=2x+4+9
3x=2x+13
3x-2x=2x-2x+13
x=13
Check:
3(13)-9=2(13)+4
39-9=26+4
30=30
4 0
3 years ago
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