Marc has 45 CDs in his collection, and Corinna has 61. If Marc buys 4 new CDs each month and Corinna buys 2 new CDs each month, after how many months will Marc and Corinna have the same number of CDs

Answers

Answer 1

Answer:

8 months

Step-by-step explanation:

x=# of months

45+4x=2x+61

45+2x=61

2x=16

x=8


Related Questions

How many groups of 5 are in the product of 523 and 45

Answers

there are 104.6 and 9 groups of 5 in 523 and 45

What is the value of x when solving the equation Negative 2 x + (negative 8) = 2 x + 8 using algebra tiles?

Answers

Answer:

x= -4

Step-by-step explanation:

-2x-8=2x+8                                                                                                            or, -2x-8-2x-8=0                                                                                              or,-4x-16=0                                                                                                 or,-4(x+4)=0                                                                                                     or,x+4=0                                                                                                                  or,x= -4

Answer:

your answer -4

Step-by-step explanation:

Find f(9) if f(x) = 2x+6

Answers

Answer:

24

Step-by-step explanation:

To do this all you need to do is replace x with 9

F(9) = 2(9) + 6

2 x 9 = 18

18 + 6 = 24

The answer is 24

The answer is 24
Hope this helps

Describe your results. If you had to express this relation as a verbal statement, how would you describe it?
Forearm (Input) Foot(Output)

9 inches 9 inches
8 inches 9 inches
8 inches 8 inches
5 inches 4 inches
10 inches 9 inches

Answers

Answer:

this is the answer

Step-by-step explanation:

A E

The verbal statement that would describe it is

An input of 9will result to a 9 and an 10and an input of 4will result to an 9and 5


Which equation is linear?
A. xy = 6
B. 3x – 2y = 5
C. y = x² – 3x + 1
D. Y2 + 1 = x

Answers

Answer:

B

Step-by-step explanation:

3x - 2y = 5

In linear equation each terms degree should be 1.The above is Linear equation with two variables.

Linda borrows $124 from her brother. He tells her to forget paying back $65 of the loan. How much does Linda owe her brother?

Answers

Answer:

$59

Step-by-step explanation:

124 - 65 = 59

!!HELP!! Which of the following pairs of numbers is matched with its correct greatest common factor? Select two that apply.

The greatest common factor of 62 and 74 is 6.


The greatest common factor of 45 and 70 is 5.


The greatest common factor of 38 and 39 is 3.


The greatest common factor of 60 and 84 is 12.

Answers

Answer:

D

Step-by-step explanation:

Answer:

The greatest common factor of 60 and 84 is 12

Step-by-step explanation:

60=2×2×3×584= 2×2×3×7

so above explanation the greatest common factor is 12

Determine whether the system has no one, or infinitely many solutions.
y = 2x + 6
y = -x - 3​

Answers

Answer:

One solution

Step-by-step explanation:

I think its 1 solution but I could be wrong, I looked it up and it said one solution.

Answer:

one

Step-by-step explanation:

I am using substitution method:

2x+6=-x-3

subtract 6 from both sides

2x=-x-9

add x to both sides

3x=-9

divide by 3

x=-3

you can also graph this to see. I personally like using desmos.

Vrite and simplify an expression to find he total cost of x pencils , 1 poster board , and (x + 1) notebooks.

Answers

Answer:

The expression to find the total cost of x pencils, 1 poster board, and (x + 1) notebooks will be:

[tex]C=xp+b+nx+n[/tex]

Step-by-step explanation:

Consider '[tex]x[/tex]' be the number of pencils which were bought

Consider '[tex]p[/tex]'  denotes the cost of [tex]1[/tex] pencil

Consider '[tex]b[/tex]'  denotes the cost of [tex]1[/tex] poster board

Consider '[tex]x+1[/tex]' be the number of notbooks which were bought

Consider '[tex]n[/tex]'  denotes the cost of [tex]1[/tex] notebook

As we have to find the total cost. Let 'C' denotes the total cost

so the expression becomes

[tex]C=xp+b+\left(x+1\right)n[/tex]

simplifying

[tex]C=xp+b+nx+n[/tex]

Therefore, the expression to find the total cost of x pencils, 1 poster board, and (x + 1) notebooks will be:

[tex]C=xp+b+nx+n[/tex]

A triangle has dimensions 3, 4, and 5. A similar triangle is drawn with a scale
factor of 2. What are the dimensions of the new triangle?
A. 3, 4, and 5
B, 6, 8, and 10
C. 1.5, 2, and 2,5
D. 30, 40, and 50

Answers

BEEEEEEEEEEEEEEEEEEEEEP

When preparing to cook, Joanna can chop 7.5 pounds of carrots in 16 minutes. How many ounces can she chop per second?

Answers

16x60 to get the minutes into seconds which is 960 then times 7.5 by 16 to get into ounces which is 120 then divid 960 by 120 to get 8

8 ounces per second I’m pretty sure

Simplify this expression.

1 + 4.25n + 32p – 3 + (–2p) + 54n

Answers

Answer:

58.25 n +30p-3

step explanation:

Answer:

30p - 2 + 58.25n

Step-by-step explanation:

54n + 4.25n = 58.25n

1 - 3 = -2

(since the 2 is in parenthasis you will be subtracting instead of adding)

32p - 2p = 30p

hope this helps :)

PLEASE HELP!!

Does this circle have a radius or a diameter?

Answers

Answer:

Just remember to divide the diameter by two to get the radius.

Step-by-step explanation:

So, no?

Choose a value that breaks this gem into 5 equal pieces.
25%
50%
10%
20%
200

Answers

20%, because 100/5=20

Write this essay for me
ftgyhujiokpjhgfrd6tyujnhbgvfcd bdyt wehdfvdfo dfvkdsfdofne gergohewrierofnerg
syke its a giveaway for 50 points

Answers

Answer:

thanks for the free points! ✌

Step-by-step explanation:

Answer:

Thank you for the giveaway, I guess?

Find the slope of the line through the
given points: (2,6) & (5, 6)

Answers

Answer:

Zero Slope

Step-by-step explanation:

rise over run or y2 - y1 / x2 - x1

6-6/5-2 = 0/3

Select the statement that correctly describes a Type I error.

Answers

can u upload the answers?

Answer:

can you add the answers?

Step-by-step explanation:

please help me bro I’ll give u wtv

Answers

Answer:

slope(m)=-3

Step-by-step explanation:

There are 86 calories in 100 g of banana
There are 89 calories in 100 g of yogurt
Amanda has 70 g of banana and 140 g of yogurt for breakfast
Work out the total number of calories in this breakfast

Answers

184.8 calories :)

the grams are both 100, meaning we can use percentages. banana: 70% of 86 (.7*86=?) is 60.2 calories. yogurt: 140% of 89 (1.4*89=?) is 124.6 calories. 60.2+124.6=184.8 calories

guuys heeelppp asaaaaaap​

Answers

See the attachment.....

Answer:

-3/5

Step-by-step explanation:

see the details in the attachment.

ThAnks for the help pls

Answers

I think the answer is D

Two pounds of grapes cost $6.

Complete the table showing the price of different amounts of grapes at this rate.




What number belongs in the leftmost empty cell?


What number belongs in the rightmost cell?

Answers

Answer:

leftmost empty cell: ⅓

rightmost empty cell: 3

Step-by-step explanation:

✔️If 2 pounds grapes cost $6, then x pounds of grapes cost $1.

Thus;

2 : 6 = x : 1

2/6 = x/1

Multiply both sides by

²/6 × 1 = x/1 × 1

²/6 = x

¹/3 = x

x = ⅓

✔️If 2 pounds grapes cost $6, then 1 pound of grapes cost $x.

Thus;

2 : 6 = 1 : x

²/6 = ¹/x

Cross multiply

2x = 6

Divide both sides by 2

2x/2 = ⁶/2

x = 3

IIf two ounces of cheese has 200 calories, how many calories are in 5 ounces of cheese?

Answers

Answer:

500 calories

Step-by-step explanation:

200 / 2 = 100

1 ounce = 100 calories

5 * 100 = calories.

OR

200 * 5 = 1000

1000 / 2 = 500

Therefore, 5 ounces of cheese = 500 calories.

1
What is the inverse operation that would need to be done in order to isolate the variable?
-15 = -0.2x *
(1 Point)

Answers

Answer: Division

Step-by-step explanation: Because since 0.2x is multiplication (0.2 * x [or 1x]), then it would be division, and obviously do that on both sides


create a model or equation that will represent to the amount of relief each family will receive bearing in mind that the number of families will vary.​

Answers

Missing Information

Suppose the officials conducted a survey for 4 days to determine the actual number of families residing in the barangay and the secretary constructed a tableto keep track of the data.

Day 0:

Number of families: 850

Amount of relief each family will receive: 520

Answer:

f(x) = 442000/x

Step-by-step explanation:

Given

The data in the above table

Required

Determine a model or equation

First, we need to determine the amount of relief for all families.

Using data in day 0.

Total Amount = 850 * 520

Total Amount = 442000

Next, we determine the function of equation.

Let the number of families he represented by x

The function or equation is gotten by dividing the total amount by the number of families.

Hence:

f(x) = Total Amount ÷ x

Substitute values for total amount and x

f(x) = 442000/x

Hence, the model that satisfies the given information is:

f(x) = 442000/x

Find x in the following solution: x+x+10+2x-6=180

Answers

Answer:

X = 44

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

x=44

Step-by-step explanation:

First you add the all the x's.

4x+10-6=180

Then you subtract 6 from 10

4x+4=180

Next, you add subtract 4 from both sides.

4x=176

Divide by 4 and you get 44.

176/4

x=44

The larger the two numbers is one more than four times the small number. if the sum of the numbers is 106,find the two numbers ​

Answers

Answer:

Smaller no. = 21

Larger no. = 85

Step-by-step explanation:

Smaller no. = y

Larger no. = 4y + 1

y + (4y + 1) = 106

y + 4y + 1 = 106

5y + 1 = 106

5y = 106 - 1

5y = 105

y = 105/5

y = 21

Smaller no. = y = 21

Larger no. = 4y + 1 = 4×21 + 1 = 84 + 1 = 85

PLZ HELP ME WITH THIS!!! I WILL MARK BRAINLIEST!!!

Answers

Answer:

-4

Step-by-step explanation:

Hope this helps! Consider Brainiest!

Answer:

-8

Step-by-step explanation:

what is g(h(10))? on edge2020

Answers

Answer:

2√2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

g(x) = √(x - 4)

h(x) = 2x - 8

Step 2: Evaluate

h(10)

Substitute:                    h(10) = 2(10) - 8Multiply:                        h(10) = 20 - 8Subtract:                       h(10) = 12

g(h(10))

Substitute:                    g(h(10)) = √(12 - 4)Subtract:                       g(h(10)) = √8Simplify:                        g(h(10)) = 2√2

Answer: A

Step-by-step explanation:

Selena is 6 years younger than Paul. in 15 years, Paul will be 4 times the age that Selena is now. find their present ages

Answers

Selena is 7 and Paul is 13. In 15 years Paul will be 28.
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