1) Johnny has $15 to spend on songs and podcasts. He wants to download at least 5 items. Songs cost $1.99 each and podcasts cost $0.75 each. Represent the scenario as a system of inequalities.

A. x+y≥5
1.99x+0.75y≤15

B. x+y≤5
1.99x+0.75y≥15

C. x+y≥15
1.99x+0.75y≤5

D. x+y≤15
1.99x+0.75y≥5

2) When solving the following system using elimination, which of the following will allow you to get opposites?

−4x+9y=9
x−3y=−6

A. Multiply the second equation by -3.

B. Multiply the second equation by -4.

C. Multiply the second equation by 3

D. Multiply the second equation by -1.

3) When solving the following system using elimination, which of the following will allow you to get opposites?

−4x−15y=−17
−x+5y=−13

A. Multiply the second equation by -4.

B. Multiply the second equation by 4.

C. Multiply the first equation by -4.

D. Multiply the first equation by -1.

Answer:

I think they're both always but I'm not sure

Answer:

Length = 7cm, Width = 15cm

Step-by-step explanation:

Length = p

Width = 3(p-2)

          = 3p-6

Perimeter = length + width + length + width

                = p + 3p-6 + p + 3p-6

                = 8p-12

8p - 12 = 44

Isolate 8p.

8p = 44+12

    = 56

Find p.

p = 56 ÷ 8

p = 7

Length = 7cm

Width = 3(7)-6

          = 21-6

          = 15cm

Answer:

154

Step-by-step explanation:

180-26=154

Answer:

24

Step-by-step explanation:

Hope this helps!     :3

plz mark as brainliest!

Answer:

The answer is 24 :)

Answer:

3b

Step-by-step explanation:

It`s just . . . 3b lol

When numbers and variables multiply, they are put in the form of (integer)(variable). They phrase can only be further simplified if there is a number substitution for b.

Answer:

the answer is 1/3. hope it help                            

Answer:

The answer for this is x=-5

Answer:

x=-5

Step-by-step explanation:

-4x+1=21

move the 1 to the right side and subract it so it will turn into -4x=20

divide -4 to get the x by itself and then you will get x=20/-4 this will now divide and be x=-5

Answer:

5,5

Step-by-step explanation:

it has the longest side

Answer:

Final Answer: There are 100 wizards in the magic club

Step-by-step explanation:

Since this question is asking for how many wizards are in magic club, we can represent wizards with the variable "w"

w = wizards

Next, we know that there are 120 goblins and that there are 20% more goblins than wizards in magic club.

120 = w + 20%w

120 = w + 0.2w

(percentages are just the percent/100)

120 = 1.2w

1200 = 12w

100 = w

8 roses and 12 carnations =

4 roses and 6 carnations =

2 roses and 3 carnations =

1 rose and 1.5 carnations

the ratio is 1/1.5

Answer: The answer is 9 because the equations represent the same expression but just in different forms.

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

The "each year" would be represented as a 1. Using the number 365 would represent the days in a year but not the entire year as a whole. For example, if we were to apply the 2.04% population increase to the population of 486,290 then that would give us the new population for the year 2020 which is 1 year more than 2019.

Answer:

you need to include the answers from a-d for us to give you a proper answer if not we cant

Step-by-step explanation:

The dimensions of a car park for 60 cars is: 480 m^2

To solve this exercise we have to do a mathematical operations of multiplication with the given information.

Information about the problem:

To know the dimensions for the car park  of 60 cars we have to do the following multiplication:

dimensions for a car park (60 cars) = car park space * 60 cars

dimensions for a car park (60 cars) = 8 m^2/car * 60 cars

dimensions for a car park (60 cars) = 480 m^2

It is a mathematical operation that consists of adding the same number, called the multiplicand, as many times as indicated by another number, called the multiplier. The result is called the product.

Example: 2+2+2= 6 is equal to say 2*3= 6

Multiplied * multiplier = product

Learn more about multiplication at: brainly.com/question/10873737

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Cheryl, that paid $37.20 for 12 gallons of ice cream for a school picnic would pay $0.78 for 1 quart of ice cream

To solve this problem, we have to state the equation using the information of the problem

Information about the problem:

Converting the amount unit from gallon to quart, we get:

12 gallons * (4 quart / 1 gallon) = 48 quarts

12 gallons are equivalent to 48 quarts

Calculating how much would cost 1 quart of ice cream:

1 quart cost = payment / amount(quart)

1 quart cost = $37.20 / 48 quarts

1 quart cost = $0.78

We can say that they are the set of numbers and symbols that are related by the different mathematical operation signs such as addition, subtraction, multiplication, division among others.

Learn more about algebraic operations at: brainly.com/question/3927786

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The number of units that needs to be sold to earn at least $250 is 20.

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

We have,

The minimum amount that needs to be earned = $250

One unit cost = $5

The amount earned in the first week = $105

Number of units = x

The number of units to sell in the second week.

150 + 5x ≥ 250

5x ≥ 250 -150

5x ≥ 100

x ≥ 20

Thus,

20 units need to be sold to earn at least $250.

Learn more about inequalities here:

https://brainly.com/question/20383699

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Answer:

Please check the explanation.

Step-by-step explanation:

Given the equation

y=x-2

We know that Reflecting over the x-axis inverts the sign of the y-coordinate.

Thus, after reflecting over the x-axis, the equation would be:

-y = x - 2

Now, writing the equation in the slope-intercept form

y=mx+b

where

so the equation in the slope-intercept form

-y = x - 2

y = -x + 2

Here,

Answer:

12.6

Step-by-step explanation:

Answer:9 miles

Step-by-step explanation:

5 working daya x 1.8 miles = 9 miles

Step-by-step explanation: 1.8 x  7

Answer:

3:2:5

Step-by-step explanation:

x+1:x:x+3

x=2

10-4=6/3=2

Answer:

yes it is

Step-by-step explanation:

Answer:

please pleasehelp help me me my question

Answer:

63

Step-by-step explanation:

--------------------

1. Kris

2. Katie

---------------------

Answer:

the last one 5/6

Step-by-step explanation:

Answer:

5/6

I hope this helps!