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Gelneren [198K]
3 years ago
11

Cell phone company A charges $20 per month plus $0.05 per text message. Cell phone company B charges $10 per month plus 0.07 per

text message. Is there any number of text messages that will result in the exact same charge from both companies?
Mathematics
1 answer:
balu736 [363]3 years ago
7 0

Answer:

Yes, 500 texts.

Step-by-step explanation:

If you write out the equations, you can just set them up equal to each other and simplify.

A = .05x + 20

B = .07x + 10

.05x + 20 = .07x + 10  (subtract 10 from both sides)

.05x + 10 = .07x  (subtract .05x from both sides)

10 = .02x  (multiply both sides by 50

x = 500 texts

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Find Lm=<br> Help me please thanks
Ymorist [56]

A triangle is a three-edged polygon with three vertices. The length of LM is 3√3 cms.

<h3>What is a triangle?</h3>

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The sum of all the angles of a triangle is always equal to 180°.

The triangle formed by MN, MO, and NO is an equilateral triangle, with the length of each side of the triangle equal to the radius of the triangle. Therefore, the length of MN will be,

MN = r

Now, the length of arc MN can be written as,

2 × π × r × (60° /360°) = π

r = 360 / (60 × 2)

r = 3 cms

Further, the radius of the circle can be written as,

LO = ON = OM = MN = Radius = 3 cms

Since, the triangle formed in a semicircle is a right-angle triangle, therefore, using the Pythagorean theorem we can write,

LM² + MN² = LN²

LM² + MN² = (LO + ON)²

LM² + r² = (r+r)²

LM² + r² = 4r²

LM² = 3r²

LM² = 3(3²)

LM = √27 cms

LM = 3√3 cms

Hence, the length of LM is 3√3 cms.

Learn more about Triangle:

brainly.com/question/2773823

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4 0
2 years ago
Find the rate of change for this linear function Y equals MX plus be
Crazy boy [7]
Y=mx+b is an equation 
8 0
3 years ago
5x - 2y = 3, -5x + 4y = 9 solutions
Vinvika [58]
5x-2y=3
-5x+4y=9

2y= 12
divide it by 2

y= 6


put y in any equation

5x-2 (6)=3

5x-12=3
5x= 3+12=15
divide by 5
x=3

y= 6
3 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP 35 POINTS
podryga [215]

Your answer is A

It cannot be C because the line y > -2  uses the (>) greater than symbol.

When equations have a greater than symbol, they are graphed using a <u>dotted line. </u>

It cannot be D because the line is  y ≤ - l x-1 l

with the less than or equal to sign (≤) , you use a <u>solid line</u> to graph


With the<u> greater than</u> symbol for y > -2 , the shaded region must be <em>above </em>this line.

With the <em>less than </em>or equal to sign in y ≤ - l x-1 l , the shaded region must be <em>below </em>the line.


Hope I helped - message me if you have any questions :)

5 0
3 years ago
Mackenzie has $70 in a savings account. The interest rate is 5%, compounded annually.
sladkih [1.3K]

Answer:

She will have $73.5 in 1 year

Step-by-step explanation:

She has $70 and the interest rate is 5% so we need to add 5% to the initial value

x = $70 + $70 * 5%

5% = 5/100

x = $70 + $70 * 5/100

x = $70 + $3.5

x = $73.5

She will have $73.5 in 1 year

8 0
3 years ago
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