One cell phone plan charges 20$ per month plus$0.15 per minute used.A second cell phone plane charges $35 per month plus $0.10 per minute
used. write and solve an equation to find the number of minutes you
must talk to have the same cost for both calling plans.
Please help!!!! i suck at word problems.

Answers

Answer 1

Answer: So for the first one... Let's just use x for months and m for minutes.

(20m)+(.15m)

20 times the number of months plus .15 times the number of minutes

Same for the next one

(35x)+ (.10m)

35 times the number of months +.10 times the minutes.

Answer 2

Answer:

Answer:

300 minutes

Step-by-step explanation:

Equation: 20 + 0.15x = 35 + 0.10x

0.05x = 15

x = 300 minutes

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Solve the following equation. Remember to check for extraneous solutions 7/(b+3) + 5/(b-3) = (10b-2)/(b²-9).

Answers

Answer:

b= 2 is the solution for the given equation.

Step-by-step explanation:

Here, the given expression is:

$(7)/((b+3)) + (5)/((b-3)) = (10b -2)/((b^(2) -9))$

Simplifying Left side, we get

$(7)/((b+3)) + (5)/((b-3))$

= $(7(b-3) + 5(b+3))/((b+3)(b-3))$

Also, by ALGEBARIC IDENTITY: $x^(2) -y^(2) = (x+y)(x-y)$

So, $(b+3)(b-3) = b^(2) -9$

So, LHS becomes $(7(b-3) + 5(b+3))/(b^(2) -9)$

Compare both Left side, Right side we get

$(7(b-3) + 5(b+3))/(b^(2) -9)$ = $(10b -2)/((b^(2) -9))$

or, 7(b-3) + 5(b+3) = 10b -2

⇒ 7b - 21 + 5b + 15 = 10b -2

or, 12b - 10b = 6-2

or, 2b = 4 ⇒ b = 4/2 = 2

⇒ b= 2 is the solution for the given equation.

2^x+5 = 3^1-x use logarithms to solve the exponential equation. round answer to 3 decimal places.

Answers

$2^(x+5)=3^(1-x)\ \ \ \ \ /log_2()\n\nlog_22^(x+5)=log_23^(1-x)\n\nx+5=(1-x)log_23\n\nx+5=log_23-xlog_23\n\nx+xlog_23=log_23-5\n\nx(1+log_23)=log_23-5\ \ \ \ /:(1+log_23)$

$x=(log_23-5)/(1+log_23)\n-------------\nlog_23\approx1.5849625\n----------------\nx\approx(1.5849625-5)/(1+1.5849625)\approx-1.321$

2^x+5 = 3^1-x
take log on both sides
(x+5)log2=(1-x)log3
0.3010(x+5) = (1-x)0.4771
0.3010x + 1.5050 = 0.4771 - 0.4771x
0.7781x= -1.0279
x=-1.320

A principal of $835 in an account at 3% per quarter simple interest

Answers

Take $835 and multiply by 0.3 and you get $25.05
If you add $25.05 to $835 you will get $860.05
Keep adding $25.05 and you will have sums of $885.10, $910.15, $935.20
So your answer is D.

Svetlana has 1.2kg of apples and plenty of the other ingredients. She wants to make apple crumble for a maximum number of people. What is the maximum number of people she will be able to serve?You must show your working

Answers

12 number of maximumpeople she can serve.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Amount of Apples = 750 g

and, Svetlana has 1.2 Kg of apples

So, number of people she can serve

= 1200/750 x 8

= 1.6 x 8

= 12.8

= 12 people.

Hence, 12 number of maximum people she can serve.

Learn more about Unitary Method here:

brainly.com/question/22056199

#SPJ2

What values of x make the equation x^2 + 9x – 22 = 0 true? Check all that apply.–11

–2

0

2

11

Answers

If you would like to solve the equation x^2 + 9x - 22 = 0, you can do this using the following steps:

x^2 + 9x - 22 = 0
(x - 2) * (x + 11) = 0
1. x = 2
2. x = - 11

The correct result would be x = 2 and x = - 11.

Answer:

x = 2 , - 11.

Step-by-step explanation:

Given : x² + 9x – 22 = 0

To find : What values of x make the equation.

Solution : we have given x² + 9x – 22 = 0

On factoring

x² + 11x - 2x – 22 = 0 .

Taking common x from first two term and -2 from last two terms.

x ( x +11) - 2 (x +11) = 0.

On grouping

(x -2) (x +11) = 0

For

x - 2 =0

x = 2 .

For

x + 11 = 0

x = -11.

Therefore, x = 2 , - 11.

If you have a coyote at your house what should you do if its trying to kill your animals at your ranch ???? plz help me out cause the coyote is in my ranch right now PLZZZZZZZ

Answers

Answer:

Step-by-step explanation:

1. place food away from the ranch

2. Throw stuff at it

3. Save your animals!

Answer: if it is killing your animals id say shoot it but there scared of people so just like walk around where you see it the most

Step-by-step explanation:

i hope this helps my grandpa has cows and he normally just keeps a gun with him

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