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3 years ago

Solve using order of operations. 18 - 3 x 2 + 9

Mathematics

1 answer:

Radda [10]3 years ago

6 0

Answer:

Step-by-step explanation:

PEMDAS

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Troy is considering two lawn care services. Premier Landscaping charges $15 for travel to Troy's house and $55 per hour for main

Irina18 [472]

Answer:

Cost for Premier Landscaping = $55h+15$

Cost for Ace Landscaping = $65h$

Where $h$ is the number of hours spent on lawn care.

Step-by-step explanation:

Given that:

<em>Charges as per Premier Landscaping:</em>

Fixed charges for travel to the house = $15

Per hour charges = $55

Let $h$ be the number of hours for which lawn care is done.

So, Charges for $h$ hours = Per hour charges $\times$ Number of hours =$55 $h$

Therefore, total cost = $55h+15$

Charges as per Ace Landscaping:

Per hour charges = $65

Let $h$ be the number of hours for which lawn care is done.

Then Charges for $h$ hours = Per hour charges $\times$ Number of hours =$65 $h$

Therefore, system of equations that represent the lawn care services:

Cost for Premier Landscaping = $55h+15$

Cost for Ace Landscaping = $65h$

$h>0$

Where $h$ is the number of hours spent on lawn care.

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3 years ago

1. Which term below could not be part of a polynomial expression?

hichkok12 [17]

I think it’s either 13 or 4x

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3 years ago

Amy and sarawong each improved their yards by planting rose bushes and ivy. They bought their from the same store. Amy spent 39$

notka56 [123]

To do this problem, you need to make a system of equations and let statements. Let x = the cost of a rose bush. Let y = the cost of a pot of ivy. 6x+3y =39. 2x+3y=27. Now, subtract the two equations to get 4x=12 (6x-2x,3y-3y,39-27) Now, divide both sides by 4 to get x = 3. Plug 3 in for x to solve y. 39-18=21. 21=3y. Y=7. 27-6=21. 21=3y. Y=7. I hope this helped! Sorry if it’s confusing.

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3 years ago

What is the sum?<br><br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B%20%7Bx%7D%5E%7B2%7D%20%7D%20%20%2B%20%20%5Cfrac%7

shutvik [7]

Answer:

6/x^2

Step-by-step explanation:

Simplify the following:

2/x^2 + 4/x^2

2/x^2 + 4/x^2 = (2 + 4)/x^2:

(2 + 4)/x^2

2 + 4 = 6:

Answer: 6/x^2

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3 years ago

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5.7 x 3.6 help me asap

Mama L [17]

Answer:

20.52

Step-by-step explanation:

I used a calculator

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3 years ago

Solve using order of operations. 18 - 3 x 2 + 9​

Solve using order of operations. 18 - 3 x 2 + 9