Rhianna had c CDs until she won 40 more in a contest. Write an expression that shows how many CDs Rhianna has now.

Answers

Answer 1

Answer: [tex]t=c+40[/tex]

Step-by-step explanation:

t=total

well the original amount didn't change so "c" stays the same.

and we just add a constant since she just won 40 CDs with nothing more.

so

Answer: [tex]t=c+40[/tex]

Answer 2

Answer:

t=c+40

Step-by-step explanation:

t = total

c= the number of Cds she has

40= plus the cds she already has


Related Questions

. Carlo’s Bakery is having a special where he packages 6 muffins together for a low price and

he packages 20 cookies together for a low price. His baker realized they sold the same amount

of muffins and cookies yesterday due to this great sale. What is the minimum amount of muffins

that were sole yesterday?

Answers

Answer:

60 muffins

Step-by-step explanation:

Muffins = 6 per package

Cookies = 20 per package

His Baker realized they sold the same amount of muffins and cookies yesterday

What is the minimum amount of muffins that were sold yesterday?

To find the minimum amount of muffins sold, find the lowest common multiple of 6 muffins per package and 20 cookies per package

6 muffins per package = 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84

20 cookies per package = 40, 60, 80, 100, 120

The lowest common multiple of of 6 muffins per package and 20 cookies per package is 60.

Therefore, the minimum amount of muffins sold yesterday was 60 muffins.

60:48 in its simplest form

Answers

Solution :-

Given ratio to us is 60 : 48 and we are required to convert it into simplest form .

For this first find the HCF of 60 and 48 .

= 48 ) 60 ( 1

- 48

__________

12 ) 48 ( 4

- 48

__________

0

Hence the HCF ( 60,48 ) is 12 .

Now divide the given ratio by 12 .

= [tex]\sf \dfrac{60\div 12}{48\div 12}[/tex]

= [tex]\sf \dfrac{5}{4}[/tex]

=[tex]\sf 5:4[/tex]

[tex]\boxed{\green{\bf{\dag Hence\: the\:simplest\:form\:is\:5:4.}}}[/tex]

g(x) = -6x + 5 and h(x) = -9x - 11, find (gºh)(x).

Answers

Answer:

g(h(x)) = 54x + 71

Step-by-step explanation:

Step 1: Define

g(x) = -6x + 5

h(x) = -9x - 11

Step 2: Find g(h(x))

g(h(x)) = -6(-9x - 11) + 5

g(h(x)) = 54x + 66 + 5

g(h(x)) = 54x + 71

At Al's Pizza, 57% of the orders included pepperoni pizza. At World's Best Pizza, 11 out of 19 orders included pepperoni pizza. Convert 11/19 to a percent and state at which restaurant did pepperoni pizzas make up a greater percentage of the pizzas sold?

Answers

100-57=47% at Als pizza

11/19*100=57.9% at wold best

Therefore world best make greater %

Pepperoni pizzas make up a greater percentage of the pizzas sold 57.9 %.

What is the percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

The usage of percentages is widespread and diverse. For instance, numerous data in the media, bank interest rates, retail discounts, and inflation rates are all reported as percentages. For comprehending the financial elements of daily life, percentages are crucial.

It is given that 57% of the orders included pepperoni pizza. The percentage of other pizzas is,

100-57 %=47%

If 11 out of 19 orders included pepperoni pizza the percentage of the  pepperoni pizza is,

= (11/19) × 100

= 57.9 %

Thus, pepperoni pizzas make up a greater percentage of the pizzas sold 57.9 %.

Learn more about the percentage here:

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Write the quadratic function in standard form. f(x) = 3x2 − x + 1

Answers

Answer:

It is already in standard form.

Step-by-step explanation:

Vertex Form: f(x) = a(bx - h)² + k

Standard Form: f(x) = ax² + bx + c

Answer: f(x) = -x+7.

J.D. power and Associates calculates and publishes various statistics concerning car quality. The dependability score measures problems experienced during the past 12 months by original owners of three-year-old vehicles (those that were introduced for the 2017 model year). For these models of cars, Ford had 1.27 problems per car and Toyota had 1.12 problems per car. Let X be equal to the number of problems with a three-year-old Ford, and Y be equal to the number of problems with a three-year-old Toyota. If you purchased a Ford in the 2017 model year, what is the probability that in the past 12 months the car had a) Can X be distributed as a Poisson random variable? Justify your answer. b) zero problems? c) two or fewer problems? If you purchased a Toyota in the 2017 model year, what is the probability that in the past 12 months the car had d) zero problems? e) two or fewer problems? f) Compare your answers in (d) and (e) to those for the Ford in (b) and (c).

Answers

Answer:

Follows are the solution to this question:

Step-by-step explanation:

The Ford car has an issue rate of 1.27.  

That means that [tex]\lambda = 1.27[/tex]

Here, [tex]X \sim poisson (\lambda = 1.27)[/tex]

In option (A) :

To make a random variable X a Poisson variable,  Parameter:

[tex]\to \lambda \leq 0 .[/tex]

The likelihood of success decreases with increased test numbers.  

Mathematics, as [tex]n \longrightarrow \infty, \ \ \ and \ \ \p \longrightarrow 0[/tex].

In option (B) :

You must find it: [tex]P(X =0)[/tex]

[tex]\to P(X=0) = \frac{e^{-\lambda}\cdot \lambda^{0} }{0!} \\\\\to \lambda= 1.27 \\\\=e^{-1.27} \\\\= 0.280832[/tex]

In Option (C):

You must find it: [tex]P( X \leq 2) \\[/tex]

[tex]\to P( X \leq 2) = P(X=0) +P(X=1)+P(X=2) \\\\= \sum_{x= 0}^{2} P(X=x) \\\\= \sum_{x= 0}^{2} \frac{e^{- \lambda} \lambda^{x} }{x!} \\\\= e^{-1.27}\sum_{x= 0}^{2} \frac{ 1.27^{x} }{x!} \\\\ = 0.863964[/tex]

In Option (d):

Its first rating is essential because failures in production could be detected  but before the total product becomes defective, this can be reduced.

In Option (e) :

The Toyata car has an issue rate of 1.12  

That means that [tex]\lambda = 1.12[/tex]  

Here, [tex]Y \sim poisson ( \lambda= 1.12)[/tex]

In Option (f):

You must find it: [tex]P(Y=0)[/tex]

[tex]\to P(Y=0)= \frac{e^{- \lambda } \lambda^{0}}{0!} \\\\\to \lambda = 1.12 \\\\=e^{-1.12}\\\\= 0.32628 \\[/tex]

You must find it: [tex]P(X \leq 2)[/tex]

[tex]\to P( X \leq 2) = P(Y=0) +P(Y=1)+P(Y=2) \\\\= \sum_{x= 0}^{2} P(Y=y) \\\\= \sum_{x= 0}^{2} \frac{e^{- \lambda} \lambda^{y} }{y!} \\\\= e^{-1.12}\sum_{x= 0}^{2} \frac{ 1.27^{y} }{y!} \\\\= 0.896356[/tex]

Comparing [a], [b], for the ford car and [b] and [c] for Toyot effectiveness  

Car, its probability that less faults with Toyota car are strong, that's why it's better

6th grade math help please​

Answers

The remainder of the expression is 10.

Answer:

Math tells me 8,302/12=691.833...

Step-by-step explanation:

Evaluate 4 + 6(a) when a = 2.​

Answers

Answer:

16

Step-by-step explanation:

Since a = 2, we can plug in 2 for a.

4 + 6(2)

4 + 12

16


Find the Range of the function.
y = 2x + 4 Domain: 0, 1, 2,

Answers

Answer:

y= 2x + 4

x = 4 + 2

x = 6

Step-by-step explanation:

is it helpful please tell in comments

Domain is X and Range is Y

Y=2x0+4. Y=2x1+4. Y=2x2+4
Y=4. Y=6. Y=8


Which algebraic expression has a term with a coefficient of 3?

A. -2y + 5 + 3
B. 5y - 7
C. 3(y - 6)
O D. 3y+1
SUBMIT

Answers

Answer:

D. 3y+1

Step-by-step explanation:

The coefficient is the number in front of the variable

3y has a coefficient of 3

3 ( y-6) has a factor of 3 since it is multiplied by the other term ( y-6)

tammy purchased a prepaid phone card for $20. long distance calls cost 24 cents a minute using this card. tammy used her card only once to make a long distance call. if the remaining credit on her card is $12.32. how many minutes did her call last?

Answers

Answer:

About 14 - 15 Minutes!

Step-by-step explanation:

24 cents x $12.32 = 295.68 (Multiplication)

295.68/20.00 (Division.)

  14.784 (Answer and Estimated.)

what is the difference between 20 and -10?​

Answers

The answer is 30. Hope that helps

Answer:

30 is the difference

Step-by-ste30p explanation:

The cost for copying a document is a function of the number of pages in the document. In this situation, what is the dependent variable?

Answers

Answer:

the cost is the dependent variable

Step-by-step explanation:

The independent variable is the number of pages copied

The cost depends on the number of pages, so the cost is the dependent variable

Students who have completed a speed reading course have reading speeds that are normally distributed with a mean of 950 words per minute and a standard deviation equal to 220 words per minute. Based on this information, what is the probability of a student reading at more than 1400 words per minute after finishing the course

Answers

Answer:

0.020405

Step-by-step explanation:

We solve this question, using z score formula.

z-score formula =

z = (x-μ)/σ,

where x is the raw score

μ is the population mean

σ is the population standard deviation.

From the above question:

x = 1400, μ = 950, σ = 220

z = 1400 - 950/220

z = 2.04545

Determining the probability from Z-Table:

P(z = 2.04545) = P(x<1400) = 0.97959

P(x>1400) = 1 - P(x<1400)

= 1 - 0.97959

= 0.020405

Therefore, the probability of a student reading at more than 1400 words per minute after finishing the course is 0.020405

If f(x) = 9+ x 2
Find f(9)
Helpppp

Answers

Answer:

f(9) = 90

Step-by-step explanation:

f(x) = 9+ x^2

Let x = 9

f(9) = 9+ 9^2

     = 9 + 81

    = 90

Answer:

f(9) =90

Step-by-step explanation:

[tex]f(x) =9+x^2\\\\f(9)=?[/tex]

Substitute ; x = 9 into  the given function

[tex]f(9) = 9+(9)^2\\\\f(9) = 9+81\\\\f(9) = 90[/tex]

Which of the following equations is equivalent to 7 = 2y + 9? a.) -3 = 2y + 1 b.) 8 = 9y - 1 c.) -2 = y – 1 d.) -4 = 2y + 6

Answers

i got c.) -2 = y - 1

The equation 7 = 2y + 9 is equivalent to -3 = 2y + 1 and  -2 = y – 1 option (a) and (c) are correct.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that equation:

7 = 2y + 9

After simplification:

2y = 7 - 9

2y = -2

y = -1

a.) -3 = 2y + 1

After simplification:

2y = -3 - 1

2y = -4

y = -1

b.) 8 = 9y - 1

After simplification:

9y = 1 + 8

9y = 9

y = 1

c.) -2 = y – 1

After simplification:

y = -2 + 1

y = -1

d.) -4 = 2y + 6

After simplification:

2y = -4 - 6

2y = -10

y = -5

Thus, the equation 7 = 2y + 9 is equivalent to -3 = 2y + 1 and  -2 = y – 1 option (a) and (c) are correct.

Learn more about the linear equation here:

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Write the expression: 370 and 246 and then divide by 5/8

Answers

370*246/ 5/8

Does it need to be solved too?

A local company makes cement posts in the shape of the following three-dimensional composite. The cone and cylinder both have the same radius, while the height of the cylinder is 3 times the height of the cone. Which equation can be used to find the total volume of the cement post?

Answers

Answer:

Hi, the answer is B. V=10/3pir^2h.

Step-by-step explanation:

Answer:

The answer you selected is right! The answer is indeed 10/3 pi r^2 h :)

Step-by-step explanation:

Bright Thinker approved

The width of a rectangle is 3 feet less than it’s length. The perimeter of the rectangle is 98 feet. Find the dimensions of the rectangle

Answers

Answer:

The length is 26 feet and the width is 23 feet

Step-by-step explanation:

Let l represent the length of the rectangle.

The width can be represented by l - 3, since it is 3 feet less than the length

Set up an equation:

l + l + (l - 3) + (l - 3) = 98

Add like terms and solve for l:

l + l + (l - 3) + (l - 3) = 98

4l - 6 = 98

4l = 104

l = 26

So, the length is 26 feet.

Since the width is l - 3, we can plug this in for l to find the width:

l - 3

26 - 3

= 23

So, the length is 26 feet and the width is 23 feet

Factor completely:

6z2 + 18z

Answers

Answer:

6z(z+3)

Step-by-step explanation:

6z square + 18z

take common..

6z(z+3)

plz help due toomarow

Answers

Answer:

Given: Surface Area  = Volume

2(lb + bh + hl) = lbh

2(33 + 3x + 11x) = 33x

66 + 6x + 22x = 33x

66 + 28x = 33x

66 = 5x

x  = 66/5

x = 13.2 inches

Solve the equation |-2y+5|=2|3y-1|

Answers

Answer: y=- 3/4, 7/8


What is the first step when simplifying 3 + 8 / 2

Answers

Simplify 8/2 to 4, I hope this helps

6.solve an inequality that represents the description and then solve

Toni can carry up to 18 lb in her backpack.
Her lunch weighs 1 lb, her gym clothes weigh
2 lb, and her books (b) weigh 3 lb each. How
many books can she carry in her backpack?

Answers

Answer:

nothing

Step-by-step explanation:

Can someone answer this? Fast

Answers

Answer:

[tex]\frac{6}{10}[/tex]

Step-by-step explanation:÷

convert 0.7 to a fraction so [tex]\frac{7}{10}[/tex]

and convert the mixed number to a fraction [tex]\frac{7}{6\\}[/tex]

now divide them

[tex]\frac{7}{10}[/tex] ÷  [tex]\frac{7}{6\\}[/tex]

[tex]\frac{7}{10}[/tex] x [tex]\frac{6}{7}[/tex]

so 7 and 7 cancel out so 1 over 10 and 6 over 1 now multiply and you get

6 over 10

:)

On a number​ line, between which two consecutive whole numbers would the square root of 80 be​ located? A 7 and 8 B 10 and 11 C 9 and 10 D 8 and 9

Answers

Answer:

D. between 8 and 9

Step-by-step explanation:

8*8= 64 9*9=81

80 is between 64 and 81.

BRAINLIEST +15 POINTS UP FOR GRABS!!!

Pick all line pairs that intersect each other.

1. Line AB and Line CD

2. Line CD and Line BE

3. Line BE and Line AB

4. No two lines shown intersect each other.

WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER (STEP-BY-STEP APPRECIATED)!

Answers

Answer:

Line BE and Line AB

Step-by-step explanation:

On the graph you can see that these two lines cross each other.

The angle measures of a figure Response area stay the same after a translation, reflection, or rotation.

Answers

Can you help me please

7.064 and expanded form ​

Answers

Answer:

seven and sixty-four thousandths

Step-by-step explanation:

in factors it would be

7 x 1

+ 0 x 0.1

+ 6 x 0.01

+ 4 x 0.001

Need help please. In the number 4,001,982.57........ .. .What digit in the hundredths place.

Answers

Answer:

it would be what ever number is to the right of 7  but its just a . for me

Step-by-step explanation:

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