martina bought some book. she spent a total of $45 after a discount of $6 off of her purchase. each book cost $3 . how many books did she buy ?

A) write an equation that could be used to answer the questions above. First, choose the appropriate form. Then, fill in the blanks with the numbers 45, 6, and 3. Let b represent the number of books.

B) Solve the equation in part (a) to find the number of books.

9514 1404 393

Answer:

  y = -4/5x +3/5

Step-by-step explanation:

The 2-point form of the equation for a line can be useful.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (3 -(-1))/(-3 -2)(x -2) -1

  y = 4/(-5)(x -2) -1

  y = -4/5x +8/5 -1

  y = -4/5x +3/5

Answer:

He ate about 4.6 of cheese

Step-by-step explanation:

Answer:

280 calories

Step-by-step explanation:

let's make a proportion: 50/70 = 200/x

cross multiply: 50 * x = 70 * 200

multiply: 50x = 14000

divide each side by 50: x = 280

answer is 280 calories

I hope this helped, please mark Brainliest, thank you!! :)

Answer:

A video of a drumming session.

Answer:

D. A video of a drumming session

Explanation:

A presentation can be defined as an act of talking or speaking formally to an audience in order to explain an idea, piece of work, project, and product with the aid of multimedia resources or samples.

Basically, any speaker who wishes to create an effective presentation should endeavor to interact frequently with the audience by holding a conversation and using a multimedia resource.

In this scenario, Diego has written a feature story about a drumming circle. Thus, what he should include in his visual presentation to interest the audience in the drumming experience is a video of a drumming session.

Generally, they say action speaks louder than words, and people often believe what they can see.

9514 1404 393

Answer:

  x = -4/3y² -40/3y -103/3

  x = -4/3(y +5)² -1

Step-by-step explanation:

Solve for x.

  x = (4y² +40y +103)/(-3)

  x = -4/3y² -40/3y -103/3 . . . . 'standard form' in the US

__

Taking our clues from the graph*, we can write the vertex form equation as ...

  x = -4/3(y +5)² -1 . . . . . . 'standard form' in other places

_____

* The vertex is (-1, -5), so for some leading coefficient, the equation will be ...

  x = a(y -(-5))² +(-1) = a(y +5)² -1

The value of 'a' is the scale factor. Here, that is the difference between the parabola value (x = -2 1/3) and the vertex value (x = -1) one unit away from the vertex.

Answer:

Step-by-step explanation:

I actually don't know the step by steps myself, so I just searched on

9514 1404 393

Answer:

  [tex]\textbf{D.}\quad g(x)=\sqrt{x+6}+4[/tex]

Step-by-step explanation:

A lot of math is about matching patterns.

For example, ...

  g(x) = f(x -h) +k

means g(x) is the function f(x) translated right by h units and up by k units. This will be true for any expression of f(x).

__

In this problem, f(x) = √x. We want to translate it left 6 units (h=-6)*, and up 4 units (k=4).

The notation above means that we will replace x with (x-h) = x+6. and we will add k = 4 to the result.

  f(x) = √x

  g(x) = f(x+6) +4

  g(x) = √(x+6) +4 . . . . . . matches choice D

_____

* Left is the opposite of right, so left 6 units is the opposite of right 6 units. h=6 for right 6 units, so h=-6 for left 6 units. Then x-h = x-(-6) = x+6.

__

Comment on the graph

I find it useful to see a picture with these things. In the attached graphing calculator output, the blue curve is left 6 and up 4 from the red curve. The blue curve is g(x); the red one is f(x).

Answer:

Step-by-step explanation:

2x^3+x^2-8x-4

(2x+1)(x+2)(x-2)

Answer:

R(x) = 2.25x + 4.49

Step-by-step explanation:

Equation form: R(x) = mx + b

m: represents the additional amount Joshua is charged for every day until he returns the movie, which in this case is $2.25. So, the value of m is 2.25.

b: represents the initial cost of renting the movie. Joshua rented the movie for $4.49, so b is 4.49.

Since we know the value of m and b, we can write the equation:

R(x) = 2.25x + 4.49

Answer:

Step-by-step explanation:

[tex]\frac{10a}{10}[/tex] = [tex]\frac{50}{10}[/tex] ( Division property of equality )

or

10a × [tex]\frac{1}{10}[/tex] = 50 × [tex]\frac{1}{10}[/tex] ( Multiplication property of equality )

(It depends of the options you have in the answer choices)

Answer:

The slope is 6-1

Step-by-step explanation:

the y intercept is 3

Answer:

+ 1/6

Step-by-step explanation:

HOPE THIS HELPS

PLZZ MARK BRIANLEIST

Answer:

1/6

Step-by-step explanation:

Answer:

C. Yes, Triangle KLP can be reflected across the line containing KP and then translated so that P is mapped to M

Step-by-step explanation:

2020 EXAM

Answer: C

Step-by-step explanation:

Yes, TriangleKLP can be reflected across the line containing KP and then translated so that P is mapped to M.

it is equal to zero

Step-by-step explanation:

because in number line there are positive and negative sides

Answer:

D.6

Step-by-step explanation:

Answer: P

Step-by-step explanation:

Answer:

Q

Step-by-step explanation:

The sqrt of 8 is 2.82842712475 and Q is the closest to that.

9514 1404 393

Answer:

  2x -3y = 15

Step-by-step explanation:

Add 5-y to put the variables on the same side of the equal sign. Then multiply by 3 to clear the fraction.

  5 = 2/3x -y

  15 = 2x -3y

  2x -3y = 15 . . . . standard form

Answer:

It's C, g(x) = (1/2)^x

This is a horizontal reflection of y = 2^x

across the y axis.

Step-by-step explanation:

Using the process of elimination, you can spot this answer by applying what is logical about the transformations of an exponential function.

The transformations of a standard exponential function can be given by:

ab^(1/c(x-h))+k

First note that A must be incorrect because -2^x would be a reflection across the x axis which would not match the function g because a reflection across the x axis would cause the exponential growth or decay value b to become a reciprocal and -2 is not a reciprocal of 2.

Answer:

no solution

Step-by-step explanation:

2(3x - 4) = 8x - 4 - 2x

combine like terms

6x - 8 = 6x - 4

0 = 4

Answer:

Step-by-step explanation:

46.75 - 0.10(46.75) = 46.75 - 4.675 = 42.075 rounds to 42.08

ur simply taking ur discounted price of $ 46.75 and subtracting 10% of 46.75....leaving u with a final price of 42.08

Answer: 614

Step-by-step explanation:

because i did it on edge 2020

Answer:

Step-by-step explanation:

find only for x or?

The equation for supplier A and supplier B will be y = 2.59x + 85 and y = 4.29x + 50, respectively. Supplier A has the lowest average cost per ball.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

Footballs are sold at varying prices by two rival sports equipment vendors. Supplier A costs $85 for shipping and $2.59 for each football. Supplier B costs $50 for shipping and $4.29 per football. A school wants to purchase 40 balls.

Let x be the number of the football and y be the total cost.

The equation for supplier A will be given as,

y = 2.59x + 85

At x = 40, the value of 'y' is given as,

y = 2.59 × 40 + 85

y = $188.6

The equation for supplier B will be given as,

y = 4.29x + 50

At x = 40, the value of 'y' is given as,

y = 4.29 × 40 + 50

y = $221.6

Supplier A has the lowest average cost per ball.

More about the linear equation link is given below.

https://brainly.com/question/11897796

#SPJ2

Answer:

The Answer is 90

Step-by-step explanation:

30 X 9 = 2,700

There are many equivalent fractions to

7

8

;

here are a few:

14

16

,

21

24

,

49

56

,

−

28

−

32

Explanation:

7

8

is the simplest of the equivalent fractions.

Did you (perhaps) intend to ask for the equivalent decimal fraction of

7

8

In this case

7

8

=

7

×

125

8

×

125

=

875

1000

=

0.875

Answer:

6 miles in 1 hour

Step-by-step explanation:

Answer:

6 miles

Step-by-step explanation:

36 ÷ 6 = 6

Answer:

Step-by-step explanation:

C=2πr

C=2×π×(1.5)

C=3π

But=22/7

Therefore C=3×22/7

C=9.43

Answer:

a=-14

Step-by-step explanation:

10+2a=-18

subtract 10 from 10 and -18

2a = -28

then devid by 2 from 2 and -28

a=-14