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muminat
3 years ago
15

For her cellular service, Dawn pays $32.00 a month, plus $0.75 for each minute over the allowed minutes in her plan. Write an al

gebraic expression that shows how much Dawn's bill will be for one month. Define your variable(s).
And Dawn received a bill for $47.00 last month. For how many minutes did she use her phone beyond the allowed minutes? Use your expression in the previous problem to solve this.
Mathematics
1 answer:
zubka84 [21]3 years ago
3 0

First part:

Since, Dawn pays $32.00 a month, plus $0.75 for each minute over the allowed minutes in her plan.

Let 'm' be the extra minutes used by Dawn over the allowed minutes in her plan.

So, Total bill = \$32 +(\$ 0.75 \times m)

Total bill of Dawn = \$(32+0.75m)

So, the expression which shows Dawn's bill for one month is:

\$(32+0.75m)

Second part:

Dawn received a bill for $47.00 last month.

Since, the expression for Dawn's bill for one month is:

Total bill =  \$32+\$0.75m

\$47 = \$32+\$0.75m

\$ 47 - \$32 = \$0.75m

\$15 = \$0.75m

m = 20

Therefore, Dawn used 20 minutes her phone beyond the allowed minutes.

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Rainbow [258]

Answer:

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Step-by-step explanation:

123 abc you and me now

5 0
2 years ago
The ratio of Ed's toy cars to Pete's toy cars was initially 5:2. After Ed gave 30 toy cars to Pete, they each had an equal numbe
Slav-nsk [51]

Answer:

140 toy cars

Step-by-step explanation:

The ratio of Ed's toy car to Pete's toy car is initially given as 5:2

Ed gave Pete a total number of 30 cars

Let x represent the greatest common factor that exists between both number

Number of Ed's car is represented as 5x

Number of Pete car is represented as 2x

Since they each have an equal number of cars which is 30 then we can solve for x as follows

5x-30=2x+30

Collect the like terms

5x-2x= 30+30

3x= 60

Divide both sides by the coefficient of x which is 3

3x/3=60/3

x=20

Ed's car is 5x, we substitute 20 for x

5(20)

= 100 cars

Pete car is 2x,we substitute 20 for x

2(20)

= 40 cars

Therefore, the total number of cars can be calculated as follows

= 100+40

= 140 toy cars

Hence they have 140 toy cars altogether

5 0
3 years ago
Read 2 more answers
A conical-shaped umbrella has a radius of 0.4 m and a height of 0.45 m. Calculate the amount of fabric needed to manufacture thi
bonufazy [111]

Answer:

The correct answer will be "0.756596 m²".

Step-by-step explanation:

The given values are:

The radius of an umbrella,

r = 0.4 m

The height of an umbrella,

h = 0.45 m

As we know,

The lateral surface of an umbrella will be:

⇒  \pi r\sqrt{r^2+h^2}

On substituting the values, we get

⇒  \pi \times 0.4\sqrt{(0.4)^2=(0.45)^2}

⇒  0.756596 \ m^2

So that the amount of fabric needed will be "0.756596 m²".

7 0
3 years ago
Lesson Posttes
joja [24]

A translation 2 units to the left followed by dilation by 1/2.

The correct option is (B).

<h3>What is congruency?</h3>

It states that that two triangles are said to be congruent if they are copies of each other and when superposed, they cover each other exactly.

The complete question is:

Which of the following composition of transformations would create an

image that is not congruent to its original image?

A rotation of 45° followed by a reflection across the x-axis

A translation 2 units to the left followed by dilation by 1/2

A reflection across the y-axis followed by a rotation of 60°

A rotation of 135º followed by a translation of 4 units to the right.

After a translation of 2 units to the left followed by dilation by 1/2 the image will not be congruent to its original image.

All other options are reflection and rotation, which not fit into the situation.

Learn more about congruency here:

brainly.com/question/7888063

#SPJ1

7 0
2 years ago
Help please 100 points if you do
Artist 52 [7]
U scammer it only says 5 points not 100
3 0
2 years ago
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