14.4 A Book and a Cake A book costs $45. Sales tax on the book is 7%. Write two different expressions that represent the final cost of the book in dollars. Pne of the expressions should use only a single multiplication and no other operations.
A cake that costs $32 is on sale for 15% off and there are no taxes. Explain why the expression (0.85).32 represents the final price of the cake in dollars
(0.85). 32 represents the final price of the cake in dollars because...​

Answers

Answer 1

Answer: 1. $45*1.07 | $45(1.07) 2. (0.85)*32 represent the final price of the cake in dollars because (0.85) is the 15% off in decimals.

Step-by-step explanation:

1 if you multiply 45 by 1.07 it will be 48.15 and that's the final cost of the book, same with $45(1.07) is just another way to represent the multiplication.

2 As I said the 0.85 represent the 15% off, and when you multiply it will be less.


Related Questions

Solve each system by elimination.
- 6r – 6y = -18
-5r + 8y = 24

Answers

Answer:

Step-by-step explanation:

30r + 30y = 90

-30r + 48y= 144

78y = 234

y = 3

-6r - 6(3) = -18

-6r - 18 = -18

-6r = 0

r = 0

(0, 3)

Classify 5x5 - 5x3 + 2x2 by degree.

Answers

Answer:

295 is the answer... god bless

Answer25

Step-by-step explanation:

not sure how to use a ruler like you know how they have the
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lik what do thos little lines mean. and what is there fraction

Answers

little lines are millimeters for the centimeter side, 1/4 each for the inches side. longer lines stand for centimeters or inches. there are no fractions?

state if polygons are similar

Answers

Yes similar polygons are are two polygons with the same shape but not the same size

help please !! easy question i believe :))

Answers

Solve for x given two sides

Solution

x is an angle hence we are gonna use the formula Sin

Sin 0 = opp/hyp

0 represents theta.


Sin 0 = opp/hyp
Sin 0 = 27/33

Put 27/33 in decimal form

= 0.8181

Transpose to make 0 the subject


Sin 0 = 0.8181

0 = Sin-1 0.8181

When adding Sin from one side to another it becomes Sin inverse.

0 = Sin-1 08181

Now we find the answer

0 = Sin-1 0.8181

= 54.89 degrees

Therefore x is equal to 54.9 to the nearest tenth.

please help me!!!!! urgent!!!!

Answers

Answer:

It is d it is a scalene

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Lattice has £15000 in a savings account at the start of the year. How much will she have at the end of the year if the annual interest rate is 7.5%?

Answers

Answer:

£13 875

Step-by-step explanation:

first you have to find out how much is 7.5% of 15 000 and you find it by calculating 0,075 times 15 000 which becomes 1 125. then you take out  that answer from your first answer which is 15 000 - 1 125= 13 875

Is the function linear or non linear?

Answers

Answer:

The function Has to Be Linear.

Step-by-step explanation:

The reason why the function has to be linear is because even though there is a slight curve the rest of the line is straight.

You need to look at the direction the line is pointing. Now say it was a line that had all kinds of wavey curves and loops that would be nonlinear.

I hope this helps you out. Let me know if linear is the correct answer, because if it isn't then that Assessment is crazy.

You have a Good day.

Signed, Coolnewman06

will give brainliest for right answer

Answers

Answer:

radius-5mm

diameter-10mm

circumference- 31.42mm

Oceanside Bike Rental Shop charges a $14 fixed fee plus $8 an hour for renting a bike. Tim paid
$86 to rent a bike. How many hours did he rent the bike? Write and solve an algebraic equation to
find the answer. Be sure to identify your variable. (7.EE.4)

Answers

Answer:

10.75 hours

Step-by-step explanation:

h= Hours  86divided by 8 = h= 10.75

A data set consists of 2, 2, 3, 4, 5, 5, and 7. Then, 20 is added to the data set. The new value will have little effect on the , but it will raise the significantly.

Answers

Answer:

Median; mean.

Step-by-step explanation:

A data set consists of 2, 2, 3, 4, 5, 5, and 7. Then, 20 is added to the data set. The new value will have little effect on the median, but it will raise the mean significantly.

Let's find the median and mean from the original data;

x = 2, 2, 3, 4, 5, 5, 7.

F(x) = 2 + 2 + 3 + 4 + 5 + 5 + 7

F(x) = 28

[tex] Mean = \frac {F(x)}{7} [/tex]

[tex] Mean = \frac {28}{7} [/tex]

Mean = 4

Median is the middle number of a sorted array of numbers.

Median = 4

Now, let's find the median and mean from the new data;

x = 2, 2, 3, 4, 5, 5, 7, 20.

F(x) = 2 + 2 + 3 + 4 + 5 + 5 + 7 + 20

F(x) = 48

[tex] Mean = \frac {48}{6} [/tex]

Mean = 8

[tex] Median = \frac {4 + 5}{2} [/tex]

Median = 4.5

Therefore, the median increased from 4 to 4.5 while the mean increased significantly from 4 to 8.

PLS HELP, I NEED THIS, 25 POINTS IM GIVING BRAINLIEST
For the following linear equation, what are the slope and the y-intercept?

y=x-3

Enter the slope into the first blank and the y-intercept into the second blank.

Answers

Answer:

The slope is 1, and the y-intercept is -3

Step-by-step explanation:

The slope (m), is always the number directly in front of the x. when their is no number, m=1. The y-intercept is the number at the end of the equation (b). In this case, b=-3.

classify the polynomial
2x^5-3x^2-6​

Answers

Answer:

A polynomial is a combination of terms separated by + or − signs. A polynomial does not contain variables raised to negative or fractional exponents, variables in the denominator or under a radical, or any special features such as trigonometric functions, or logarithms

Step-by-step explanation:

Andrew calculates that 40% of 50% of x is equal to 20% of 30% of y where x ≠ 0
which of the following is true
a) y equals 2x/3
b) y equals 4x/3
c) y equals 2x
d) y equals 8x/3
e) y equals 10x/3

Answers

1468

33

6

5

Step-by-step explanation:

1537825227

2382

Answer:

y=10x/3

Step-by-step explanation:

What proportion can be used when there is a %, the word "is" and the "of" in a problem?

Answers

Answer:

C. is / of = % / 100

Step-by-step explanation:

We can interpret this as:

x% of y is  z

Calculation is:

x*y/ 100 = z

Translate this into the given format:

% * of / 100 = is ⇒ % / 100 = is / of

This matches option C

What is the complement of 45?

Answers

Answer:

45°

Step-by-step explanation:

If sum of two angles is 90° , then they are called complementary angles.

Complement of 45 = 90 - 45 = 45

Classify the quadrilateral then find the values of the variable (s) PLS HELPPP
im stuck

Answers

Answer:

basic math?

pre algebra?

algebra?

trigonometry?

pre calculus?

or

calculus?

HELP ME PLEASE: Daniel opened a savings account with $1600 The peas no interest. And additional $300 each week thereafter. how much money would Daniel have in the account 25 weeks after opening the account?

Answers

im pretty sure the answer is $9,100

5c -4c +с - 3с
Help please

Answers

Answer:

cannot factor

Step-by-step explanation:

Because they cannot be factored in any other way, we say that they cannot be factored.

Answer:

-2c

Step-by-step explanation:

5c -4c +с - 3с

-1c+c-3c

c-3c

-2c

the measure of the angles in a heptagon measure 95 107 132 138 145 and 158 what is the measure of the 7th angle

Answers

Answer:

ANSWER:123

Step-by-step  its  very simple its puttin x+11 is how u get ur answer by adding the numbers close to that one angle

The measure of the seventh angle in the heptagon is 125 degrees.

What is Polygon?

A polygon is a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain.

We are given the measures of six angles in the heptagon, which are:

95, 107, 132, 138, 145, and 158 degrees

Sum of angles in Heptagon is 900 degrees.

To find the measure of the seventh angle, we can subtract the sum of the six known angles from the sum of all the angles in the heptagon:

Measure of the seventh angle = Sum of angles - Sum of known angles

Measure of the seventh angle = 900 degrees - (95 + 107 + 132 + 138 + 145 + 158) degrees

Measure of the seventh angle = 900 degrees - 775 degrees

Measure of the seventh angle = 125 degrees

Therefore, the measure of the seventh angle in the heptagon is 125 degrees.

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The number of sunflowers (s) in the garden is one more
than twice the number of roses (r):
is it inequality it not
what's its inequality model—×?? ​

Answers

Answer:

s = 2r + 1

Step-by-step explanation:

Number of sunflower (s) is 1 more than twice the number of roses (r)

Mathematically ;

Number of sunflower = 1 + 2 * number of roses

Sunflower = s ; roses = r

s = 2r + 1

We want to study the relation between the number of sunflowers and roses, we will see that it is an equation and the equation is:

s = 2*r + 1

So we know that the number of sunflowers is one more than twice the number of roses, notice that it represents an equation (so it is not an inequality)

And the equation can be written as:

s = 2*r + 1

The number of sunflowers is 2 times the number of roses, plus 1.

If you want to learn more, you can read:

https://brainly.com/question/11897796

Arrange the following in order from strong negative to strong positive.

Answers

Step-by-step explanation:   It would be D - C

The crew is taking 80 liters of water. There are 4 people on the crew. How many milliliters of water does each person get?

Answers

Answer:

Each people get 20,000 mili-litres of water.

Step-by-step explanation:

As , we know that

1 litre = 1000 mili-litre

As we have 80 litre of water

⇒ 80 litres = 80×1000 mili-litres

                 = 80,000 mili-litres

⇒ 80 litres = 80,000 mili-litres

∴ we have

Total water available in the crew = 80,000 mili-litres

As , there are 4 people in the crew

Let each people consume x mili-litre

⇒4x = 80,000 mili-litres

⇒x = [tex]\frac{80,000}{4} = 20,000[/tex] mili-litres

∴ we get

Each people gets 20,000 mili-litres of water.

A type of electric car can travel 5 on 1 kilowatt hour of electricity. How many kilowatt hours of electricity would it take Helen to drive her electric car to her aunts house and​ back? Helen lives 70 miles from her aunt.

Answers

Answer:

28 kwh

Step-by-step explanation:

given that the care can travel 5 miles on 1 kwh, i.e

5 miles travelled -----> uses 1 kwh

hence to find the unit rate:

1 mile travelled ----> Uses 1 kwh ÷ 5 = 1/5 kwh

We are also given that Helen lives 70 miles away from her aunt.

Hence a return trip (i.e "to aunts house and back"), will be 70 x 2 = 140 miles

using the unit rate that we found above, we can find the number of kwh that is used to travel 140 miles

140 miles = 140 miles x unit rate

= 140 x 1/5

= 28 kwh

Aisha types 3/5 of a paragraph in 2/3 minute. If she continues at the same rate, what fraction of a paragraph can Aisha complete in 1 minute?

Answers

(⅗ ¶)/(⅔ minute) = (⅗ ÷ ⅔ ¶)/minute = (9/10 ¶)/minute
She competes 9/10 of a paragraph per minute.

Aisha complete 9/ 10 of a Paragraph in 1 minute.

What is Fraction?

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.

Given:

Aisha types 3/5 of a paragraph in 2/3 minute.

So, In one minute she types

= 3/5 ÷ ( 2/3)

= 3/5 x 3/2

= 9/ 10 Paragraph

Learn more about fraction here:

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which most likely indicates a chemical change has occurred?

Answers

The answer is the first one



Rewrite in simplest terms: 8(-10r - 9) + 9r



Answers

Answer:

-2

Step-by-step explanation:

you answer the brackets first then add 9 then add 8

3m-19=14
what it be???​

Answers

Answer:

m=11

Step-by-step explanation:

Add 19 to both sides.

3m−19+19=14+19

3m=33

Divide both sides by 3.

3m/3=33/3

m=11

Answer:

m=11

Step-by-step explanation:

We want to isolate m on the left side of the equation.

3m-19=14; add 19 to both sides, now you have:

3m=33; divide 33 by 3:

m=11

a certain state the license plate has two digits, then two letters, and then two digits. How many different license plates are possible if letters and digits cannot be repeated?

Answers

Step-by-step explanation:

Choosing 4 digits out of 10 = 10C4 = 210.

Arranging the 4 digits in 4 places = 4!

Total number of ways to arrange digits

= 210 * 4! = 5040.

Choosing 2 letters out of 26 = 26C2 = 325

Arranging the 2 letters in 2 places = 2!

Total number of ways to arrange letters

= 325 * 2! = 650.

Total number of possible license plates

= 5040 * 650 = 3,276,000.

Answer:

3,276,000

Step-by-step explanation:

10 x 9 x 26 x 25 x 8 x 7 = 3,276,000

the numbers 10, 9, 8, 7 are the spaces available for a non-duplicated digit

the numbers 26 and 25 are for two non-duplicated letters

Is this a function? Yes or no
{(2,5), (3,6), (4,7), (5,8), (6,9)}

Answers

Answer:

No

Hope I helped!

Step-by-step explanation:

Answer: no

Step-by-step explanation: the domain value 6 is paired with both 9 and 10. 3. {(2, 2), (−1, 5), (5, 2), ... yes. 28. {(4, 5), (3, −2), (−2, 5), (4, 7)}. ANSWER: no. 29. y = −8 no.

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