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zubka84 [21]
3 years ago
6

Given the equation, C = P + (P)(T), what is the final cost of a cell phone priced at $20.00 with a tax rate of 5%?

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
6 0

Answer: Answer is $21

Step-by-step explanation:

Using the equation C = P + (P)(T)

where P= $20

T= 5%; 5/100 = 0.05

Substitute the figures in the equation,

$20 + $20 (0.05)

Apply BODMAS and open bracket first

$20 + $1

= $21

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Which answer describes the type of sequence?
lianna [129]
The best and most correct answer among the choices provided by the question is the last choice "arithmetic"


In mathematics, an arithmetic<span> progression (AP) or </span>arithmetic sequence<span> is a </span>sequence<span> of numbers such that the difference between the consecutive terms is constant. For instance, the </span>sequence<span> 5, 7, 9, 11, 13, 15 … is an </span>arithmetic <span>progression with common difference of 2.</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
6 0
3 years ago
What is the equation of the line best fit for the following data? Round the slope and y-intercept of the line to three decimal p
kari74 [83]

Answer:

y=1.383x-1.526

Step-by-step explanation:

The given data table is

x :        4       7       10       12       13

y :        5       7       12       14       18

We need to find the equation of the best fit line.

The general form of a best fit line is

y=mx+b         .... (1)

where, m is slope and b is y-intercept.

m=\frac{\sum_{i=1}^nx_iy_i-n\overline{x}\overline{y}}{\sum_{i=1}^nx_i^2-n\overline{x}^2}

b=\overline{y}-b\overline{x}

Using the graphing calculator we get

m=1.38321\approx 1.383

b=-1.52555\approx -1.526

Substitute m=1.383 and b=-1.526 in equation (1).

y=1.383x-1.526

Therefore, the equation of best fit line is y=1.383x-1.526.

4 0
3 years ago
Read 2 more answers
10. Victoria has a coupon for 30% off of any item in a department store. She decides to purchase a treadmill. The original price
KonstantinChe [14]

Answer:

Step-by-step explanation:

Original price $595.00

Discount amount 595(0.30) = $178.50

Pre tax price 595.00 - 178.50 = $416.50

tax amount 416.50(0.07) = 29.155 = $29.16

cost to Victoria 416.50 + 29.16 = $445.66

6 0
2 years ago
SOMEONE PLEASE HELP QUICK
Viktor [21]
X can be any number in the graph as long as it is on the x-axis therefore you can put x as -1,0 and 1. Then you would need to replace the ‘x’ in the equation so it would look like y=-2*1+3. You replace ‘x’ with every number you put in the x boxes. Then just solve the equations

y=-2*1+3
Y=-2*0+3
Y=-2*-1+3
They would give you the y axis coordinates so then you just put them together for the middle column.

Answer

y=-2*1+3=1
Y=-2*0+3=3
Y=-2*-1+3=5

Coordinates are (1,3) (0,3) (-1,5)
4 0
3 years ago
In the diagram below, the value of y must be
REY [17]

Answer:

y = 45°

Step-by-step explanation:

4 sides = 360°

(2y+1)° + y° + 112° + 112° = 360°

2y + y = 360 - 112 - 112 - 1

3y = 135

y = 135÷3

= 45°

4 0
2 years ago
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