1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vivado [14]
3 years ago
8

Stacey's text messaging plan charges 20¢ for each message over 450 in addition to a $14 base charge. If she owes $18.00 for text

messaging in the month of February, how many text messages did she send that month?
Mathematics
1 answer:
Sidana [21]3 years ago
3 0

$18 = 14 + 0.20(t)

- 14

4 =  0.20t

Divide 4 by 0.20

t = 20

0.20 * 20 = 4

4 + 14 = 18

Because it only charged her for texts after 450, its 450 + 20.

470. She sent 470 texts that month.

You might be interested in
Write and evaluate the definite integral that represents the volume of the solid formed by revolving the region about the x-axis
guapka [62]

Answer: V = \frac{64}{3}\pi

Step-by-step explanation: A solid formed by revolving the region about the x-axis can be considered to have a thin vertical strip with thickness Δx and height y = f(x). The strip creates a circular disk with volume:

V = \pi. y^{2}.Δx

Using the <u>Disc</u> <u>Method</u>, it is possible to calculate all the volume of these strips, giving the volume of the revolved solid:

V = \int\limits^a_b {\pi. y^{2} } \, dx

Then, for the region generated by  y = - x + 4:

V = \int\limits^4_0 {\pi.(-x+4)^{2} } \, dx

V = \pi.\int\limits^4_0 {(x^{2}-8x+16)} \, dx

V = \pi.(\frac{x^{3}}{3}-4x^{2}+16x )

V = \pi.(\frac{4^{3}}{3}-4.4^{2}+16.4 - 0 )

V = \frac{64}{3}.\pi

The volume of the revolved region is V = \frac{64}{3}.\pi

8 0
3 years ago
Select the correct answer.
yKpoI14uk [10]

Answer:

D: 5:2

Step-by-step explanation:

40:16 simplified is 5:2

6 0
3 years ago
True or false don’t lie
erastovalidia [21]

Answer:

t

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the value of each trigonometric ratio.
Tasya [4]

Answer: 40/41

Step-by-step explanation:

The cosine can be represented as adjacent/hypotenuse.  Thus, the cosine of C is 40/41

4 0
4 years ago
Read 2 more answers
________ are ratios that name the same comparison
Gre4nikov [31]
<span>Equivalent ratios are ratios that name the same comparison. Meanwhile, equivalent fractions </span><span>are fractions that name the same amount or part. Equivalent ratios and equivalent fractions are similar in that the two quantities refer to ratios and fractions that ultimately have the same value but are expressed in a different way. For example, 48/64 is equivalent to 72/96, both have the value of 3/4. </span>
4 0
4 years ago
Read 2 more answers
Other questions:
  • Can anyone help me answer this
    15·1 answer
  • Natural numbers are ____ integers​
    11·1 answer
  • BRAINLIEST FOR FIRST ANSWER! PLS GIVE FULL EXPLANATION :)
    9·1 answer
  • 8n + 10 + 6 = -8 + 5n<br> N= Help ASAP
    13·1 answer
  • you and your friend go to Farmers Market you spent $13 on fruit then you and your friend each buy the same number of tomato plan
    6·2 answers
  • What is the difference between -131 and -87 on a number line
    5·2 answers
  • What are the zeroes of f(x) = x2 + 5x + 6?
    7·2 answers
  • Dawn earned $97.50 for 10 hours of work. Amy earned $120 for 12 hours of work.How much did each person earn per hour? How can yo
    7·2 answers
  • Matt is going to see a hockey game. His ticket cost $25 plus he will pay $3 per food or drink item that he buys from the concess
    10·1 answer
  • Determine which situation could be represented by the system of linear equations given below
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!