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3 years ago

which of the ordered pairs is a solution of the given system? y=3x-2 y=-x A.(2,9)B.(1,4)C.(1/2,-1/2)

Mathematics

1 answer:

lesantik [10]3 years ago

7 0

Step-by-step explanation:

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Phones-R-Us charges $16.95 per month and $0.05 per text message. Awesome Wireless charges $22.95 per

Dima020 [189]

Answer:

$S \leq 200$

Step-by-step explanation:

Given

Phone R-Us= $16.95 + $0.05 per SMS

Awesome Wireless = $22.95 + $0.02 per SMS

Required

Determine the number of SMS such that Awesome Wireless is greater or equal to Phone R-Us

Represent the SMS with S

For Phone R-Us, we have:

$SMS = 16.95 + 0.05S$

For Awesome Wireless, we have:

$SMS = 22.95 + 0.02S$

For Awesome Wireless is greater or equal to Phone R-Us, we have:

$22.95 + 0.02S \geq 16.95 + 0.05S$

Collect Like Terms

$0.02S - 0.05S \geq 16.95 - 22.95$

$-0.03S \geq -6$

Solve for S

$\frac{-0.03S}{-0.03} \geq \frac{-6}{-0.03}$

$S \leq 200$

<em>Hence: for Awesome Wireless to cost more or equal to Phone R-Us, the number of SMS must not exceed 200</em>

4 0

3 years ago

I need a formula for this problem. Three workers each take home two packs Post-It Notes, at a cost of $.67 per pack

ludmilkaskok [199]

3[2(.67x)] I think and I hope I'm right

4 0

3 years ago

Read 2 more answers

What is the difference in solving functions when giving the following information: f(x)=2 and f(2)

vfiekz [6]

<em>*Remember that y and f(x) are the same.</em>

With f(2), you are solving for the output (y), given that the input (x) is equal to 2.

With f(x) = 2, you are solving for the input (x), given that the output (y) is equal to 2.

6 0

3 years ago

What is the range of f(x)=15(1/3)^x

wel

Answer:

(0,inf) {y║y>0}

Step-by-step explanation:

8 0

3 years ago

What is the property of equality for AM = AM

Andrew [12]

Answer:

Reflexive

Step-by-step explanation:

When a=a, it is called the reflexive property

a=b then b=a is the symmetric property

a=b b=c then a=c is the transitive property

7 0

2 years ago