Mathematics High School

At his school's book fair, Tristan paid $37.70 for 5 books by his favorite author. Each book would have cost $9 if he had purchased it online instead. In all, how much more money would Tristan have paid if he had purchased the books online?

Answers

Answer 1

Answer:

$7.30

Step-by-step explanation:

All you have to do is 9 x 5= 45

Then 45 - 37.70= 7.30

HGD

-ghost

Answer 2

Tristan would have paid $7.3 more, if he had purchased the books online.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, Tristan paid $37.70 for 5 books by his favorite author.

Each book would have cost $9 if he had purchased it online instead.

Total money paid to purchase books online = 5×9

= $45

Difference in cost = 45-37.70

= $7.3

Therefore, Tristan would have paid $7.3 more, if he had purchased the books online.

To learn more about the unitary method visit:

brainly.com/question/22056199.

#SPJ2

Related Questions

What’s the answer????

Answers

Answer:

Step-by-step explanation:

Gavin has 300 pencils
15% of the pencils need to be sharpened

Work out how many pencils need to be sharpened

Answers

Answer:

45 pencils

Step-by-step explanation:

15%/100% ×300

15% ×3

=45 pencils that needed to be sharpened and it is at easy as that

15% of 300 =

10%= 30

5%= 15

30+15 = 45

45 pencils need to be sharpened

The endpoints of CD are (-2,-4) and D(6,2). What are the coordinates of the midpoints of CD

Answers

Answer:

(2,-1)

Step-by-step explanation:

[tex]midpoint = ( \frac{ - 2 + 6}{2} , \frac{ - 4 + 2}{2} ) \\ [/tex]

[tex]midpoint = ( \frac{4}{2} , \frac{ - 2}{2} ) \\ [/tex]

[tex]midpoint = (2, - 1)[/tex]

please help!!! asap!!!
show all the steps that you use to solve this problem in the space provided
Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale.

Answers

Answer:

x = 11 cos 22 = 11 * .927 = 10.2

Please answer number 11 thank you

Answers

I think it’s comic a because if you divide the initial price by the current price you’d get a percentage of .83% and if you divide comic b’s prices you’d get .81% which comes to a conclusion of comic a having a greater increase in value

On the last day of vacation, the Hernandez family drove 252 miles from a state park to their home. That drive covered 35% of the total distance the family traveled during their vacation. What is the total distance the Hernandez family traveled during their vacation

Answers

Answer:

720 miles

Step-by-step explanation:

We are given a distance and a fraction of the total that it represents. This lets us write the relation ...

252 = 0.35D . . . . . . where D is the total distance traveled

252/0.35 = D = 720 . . . . divide by the coefficient of D

The Hernandez family traveled 720 miles during their vacation.

Which table contains input-output values of the function y = 2x - 7?

Answers

Answer:

The input-ouput is B.

Step-by-step explanation:

By plugging in 3, -4, and 5 into the x-values of the equation [tex]f(x)=2x-7[/tex] you provided you get

Answer:

750 and 3.125

Step-by-step explanation:

a = 750

b= 3.125

Sofia used colorful glass beads to make a
bracelet. She repeated the same pattern
of colored beads six times. If the length of
one pattern measures three fourths of an
inch in length, what is the total length of
the bracelet Sofia made?

Answers

Answer:

11.424cm

Step-by-step explanation:

3/4 of an inch = length of one pattern.

3/4 = 0.75 ( 1.905cm)

1.905 x 6 = 11.424cm

The total length of the bracelet Sofia made is 11.424 centimetres.

Note: I am not sure if this is completely right and meant to be in cm but I tried to help :)

Which is more, 6 quarts or 26 cups?

Answers

Answer:

26 cups

Step-by-step explanation:

24 cups is 6 quarts, 25 cups is 6.25 quarts, and 26 cups is 6.5 quarts.

Therefore, 26 cups = 6.5

6.5>6

26 cups is larger than 6 quarts.

3k^2+12k-7kn-28n square meters and a length of 3k-7n meters.

What expression represents the width of the rectangle?

Answers

Step-by-step explanation:

here ! I used the formula area = length × width

and just some algrbric expressions solving

Which will result in a difference of squares? (negative 7 x 4)(negative 7 x 4) (negative 7 x 4)(4 minus 7 x) (negative 7 x 4)(negative 7 x minus 4) (negative 7 x 4)(7 x minus 4)

Answers

An expression is defined as a set of numbers, variables, and mathematical operations. The expression that will result in the difference in the squares is (7x+4)(7x-4).

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The difference between the squares can be written as,

[tex]a^2-b^2=(a+b)(a-b)[/tex]

The expression that will result in the difference in the squares will be

[tex](7x+4)(7x-4)=(7x)^2-(4)^2[/tex]

Thus, the expression that will result in the difference in the squares is (7x+4)(7x-4).

Learn more about Expression:

https://brainly.com/question/13947055

True or False: You can use the Pythagorean Theorem to determine if a triangle is a right triangle or not.

Answers

Answer:

True

Step-by-step explanation:

Definitely true. If the shorter legs of the given triangle are a and b and the longest side is c, then if a^2 + b^2 = c^2, the triangle is a right triangle. Otherwise it is not a right triangle.

Find The Mode Of The Data 2, 4, 5, 6, 7, 2, 3, 4.

Answers

Answer:

2 and 4 is repeated mode of the data

Answer:

2 and 4

Step-by-step explanation:

The mode is the value of highest frequency in the data set2 and 4 each repeat twice whereas all other numbers only appear once2 and 4 are the mode

The sum of the squares of two positive numbers is 29 and the difference of the squares of the numbers is 21.

Answers

the numbers are 2 because 2^2=4 and 5 because 5^2=25 and 25+4=29

The line segment reflects across the x-axis. What are the new coordinates for the endpoints? How does the transformation affect the length of the line segment?A) (−4, −8) and (4, 1); The length of the segment does not change.B) (−4, −8) and (−4, −1); The length of the segment does not change.EliminateC) (4, −8) and (−4, 1); The transformed segment is longer.D) (4, 8) and (4, 1); The transformed segment is shorter.

Answers

Answer:

The length does not change

Step-by-step explanation:

Only dilations will change the size of something, the line is just changing locations. because it is across the x axis, apply the rule

x,-y

-4, -8

4, 1

Complete the following statement.

The money used in Jordan is called the dinar. The exchange rate is US $3 to 2 Jordanian dinars. To receive 22 dinars, you need to exchange
U.S. dollars.

Answers

I think 33 since you would multiple 11 in both sides which would give you $33 and 22 dinars

Answer:

$33

Step-by-step explanation:

$3 = 2 Dinars

$x = 22 Dinars

3/2 = x/22

multiply 3 by 22 and divide by 2

multiply 2 by x and divide 2

which will give answer to $33.

Don't know if it makes sense

What is the equation of this line in slope-intercept form

Answers

(1,-3)(-1,5)

Slope=

m=5+3/-1-1m=8/-2m=-4

Equation in point slope form

y+3=-4(x-1)y+3=-4x+4y=-4x+1

Answer:

[tex]y=-4x+1[/tex]

Step-by-step explanation:

We have been given two points on the line, so:

[tex]\textsf{let}\:(x_1,y_1)=(-1,5)[/tex]

[tex]\textsf{let}\:(x_2,y_2)=(1,-3)[/tex]

Calculate the slope using the slope formula:

[tex]\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{-3-5}{1-(-1)}=-4[/tex]

From inspection of the graph, it appears that the y-intercept (where the line crosses the y-axis) is at (0, 1). However, just to be sure, use the point-slope form of linear equation.

Point-slope form of linear equation: [tex]y-y_1=m(x-x_1)[/tex]

(where m is the slope and (x₁, y₁) is a point on the line)

[tex]\implies y-5=-4(x-(-1))[/tex]

[tex]\implies y-5=-4x-4[/tex]

[tex]\implies y=-4x+1[/tex]

Therefore, the equation of the line in slope-intercept form is:

[tex]y=-4+1[/tex]

Need help

1000x+27x+5.5=9236

Answers

Answer:

x = 8.98782862707

Step-by-step explanation:

Base on the given we can infer that we are solving for x:

Given equation:

1000x+27x+5.5=9236

Combine similar terms

1027x + 5.5 = 9236

Subtract both side by 5.5

1027x + 5.5 = 9236

-5.5 -5.5

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

1027x = 9230.5

Now divide both sides by 1027x

9230.5 / 1027

x = 8.98782862707

[RevyBreeze]

x^2-y^2=16
y^2=-x+4

I need help to solve the system of equations

Answers

You first need to rearrange your equation to make it equal one variable. So I isolated x which gives me x=-1(y^2-4). You then put the X equation into the first equation. Which gives (-y^2+4)^2-y^2=16. The answer when you solve for y is 0. You then substitute y in the second equation. Which gives 0=-x+4 then solve for x. The answer being x=4 and y=0
Please brainlist

In ΔPQR, ∠P and ∠Q are complementary angles.

.

Answers

Answer:

P + Q = 90

P = 90 - Q

Cos (p) = cos (90-Q) = sinQ = 4/5 (given)

You can find CosQ from the triangle of Q

CosQ = sqrt (5^2 - 4^2) / 5 = 3/5

Required = CosP + CosQ = 4/5 + 3/5 = 7/5

Step-by-step explanation:

hope this helps if not please let me now

Answer:

P + Q = 90

P = 90 - Q

Cos (p) = cos (90-Q) = sinQ = 4/5 (given)

You can find CosQ from the triangle of Q

Answer:

Step-by-step explanation:

Tina started with $20, but had to spend $3.25 on the bat.

$20-$3.25 = $16.75, which is all she has left for rounds.

Each round costs $3.00

$16.75 divided by $3.00 comes out to 5.58 rounds, but since she can't play 1/2 a round, that means she could only play 5 rounds

5 rounds X $3.00 per round comes to $15.00

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