The cost of a telephone call is 75 cents plus 25 cents per minute. Write an algebraic expression that models the cost of a telephone call that lasts t minutes.

Answers

Answer 1

Answer: y=.75x+.25

.75(1)+.25= $1.00
x= the number of phone calls y= the total

Answer 2

Answer: 75 + 25 x t = Answer

Example:
t= 2 minutes
75 + 25 x 2 = $2.00

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A jewelry designer is making a pendant. The pendant will be a circular dis (center O) with a circular hold cut out of it, as shown. The radius of the disc is 35 millimeters. Find the area of the pendant. Use 3.14 for π and round to the nearest tenth

Answers

Answer:

2884.8 millimeters squared

Step-by-step explanation:

Given:

The radius of the disc is 35 millimeters, so the area of it is:

π $r^(2)$ = 3.14* $35^(2)$ = 3846.5

Then, we find out the area of the circular hold cut out of the bigger one, its radius is a haft of the radius of the bigger circle = 35/2 = 17.5

π $r^(2)$ = 3.14* $17.5^(2)$ =961.6

=> the area of the pendant = 3846.5 - 961.6 =2884.8 millimeters squared

If four times a number plus 3 is 11, what is the number

Answers

n - the number

4 · n + 3 = 11
4n + 3 = 11 |subtract 3 from both sides
4n = 8 |divide both sides by 4

n = 2

Four times a number plus 3 is 11

$4 * n + 3 = 11$

$4n + 3 = 11 -3$

$4n = 8$

$4n/4=8 / 4$

$n = 2$

Hence solved

The expression b/c=b/c is an example of a(n)?

Answers

Answer:

$(b)/(c) =(b)/(c)$

bc=cb

It is an example of commutative property.

Step-by-step explanation:

The given expression

$(b)/(c) =(b)/(c)$

By cross multiplying we can write given expression as

$b* c=c* b$

Commutative property: commutative property states that order does not matter.

In addition , commutative property

a+b=b+a

In multiplication , commutative property

$a* b = b* a$

We can write commutative property in multiplication

ab=ba

Therefore, by using commutative property then we get

bc=cb

Hence, the given expression is an example of commutative property.

it is a example of commutative property is commutative property you change the order not the result

agnes and simore spend 2 hours painting 34 miniature figures that they use to create artistic scenes agnes paints 14 figurines what is the average rate at which samone paints figurines ?

Answers

Answer:

Samone paints 20 figurines in 2h or 120min

average speed at which Samone paints figurines: 120/20 = 6min

she paints at a speed of 6min/figure

Step-by-step explanation:

The struggle is real...

Answers

Point Form:
(2, 4), (1, 1)

Equation Form:
x = 2, y = 4
x = 1, y = 1

Answer:

I think it is 5

Step-by-step explanation:

A car rental company charges a flat rate of $247 plus a daily rate of $53. 7)Write an equation to represent the total cost of renting a car for a certain number of days. Define your variables.

8) If you were charged $671 for renting a car, how many days did you rent the car for?