All categories

3 years ago

PLEASE ANSWER IM DESPERATE

Mathematics

2 answers:

iren [92.7K]3 years ago

8 0

Y=$1.50x, where x is the number of energy drinks bought. Each bottle costs $1.50.

Sergio039 [100]3 years ago

5 0

Answer:

y=1.50x ...........

Step-by-step explanation:

Let x be the per-bottle price of the energy drink. Then:

3x=y=4.50

x=4.50/3

=1.50

Then:

y=1.50x ...................

You might be interested in

Select the polynomial that is a perfect square trinomial. 36x2 − 4x 16 16x2 − 8x 36 25x2 9x 4 4x2 20x 25.

Naya [18.7K]

The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.

The given polynomial is

$a) 36x^2-4x+16$

What is the form of perfect square polynomial?

$(ax+b)^2$

we solve this method by using perfect square method

add and subtract 1/9

$36x^2-4x+16+\frac{1}{9}-\frac{1}{9}$

factor 36

$\frac{143}{9}+36(x^2-\frac{x}{9}+\frac{1}{324} )$

Now complete the square

$\frac{143}{9}+36(x^2-\frac{1}{18})^2$

Therefore this is not perfect square trinomial.

Similarly for

$b) 16x^2-8x+36$

Complete square is,

$16(x-\frac{1}{4})^2+35$

This polynomial is also not perfect square trinomial.

$c) 25x^2+9x+4\\$

complete square is,

$25(x+\frac{9}{50})^2+\frac{319}{100}$

This polynomial is not perfect square trinomial.

$d)4x^2+20x+25\\$

complete square is,

$(2x+5)^2$

This polynomial is perfect square trinomial.

Therefore,

The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.

To learn more about perfect square trinomial visit:

brainly.com/question/1538726

3 0

2 years ago

3. A bicycle wheel has a diameter of 559 mm and has 32 equally spaced spokes. What is the approximate arc

bija089 [108]

Circumference = πd = 3.14*559 = 1755.26
The spokes divide the circumference into 32 arcs. Each arc length is 1755.26/32 = 54.75 mm

4 0

3 years ago

X+4>-15 please solve thank you

anyanavicka [17]

X + 4 > -15
x > -15 - 4
x > -19

The answer is: x > -19.

3 0

3 years ago

I need help with these 4 questions on my math homework! I have some examples with it but I still don't know how to do them... (S

lesya [120]

Step-by-step explanation:

For equation N°2

$-x-3 = 0\\$

Solving algebraically:

$-x + x -3 = x$ (Sum x on both sides of the equation)

$-3 = x\\$

Resolving graphically:

x = -2 --------- - (- 2) -3 = -1 pto (-2, -1)

x = -4 ---------- - (- 4) -3 = 1 pt (-4.1)

x = -3 --------- - (- 3) -3 = 0 pt (-3.0) Solution

The graphic is shown in the attached image. The red dot in the graph represents the solution

For equation N° 4

$9x +3 = 0\\$

Solving algebraically:

$9x+3 -3 = -3$ (Sum -3 on both sides of the equation)

$9x =-3$

$\frac{9x}{9}=\frac{-3}{9}$ (divided by 9 on both sides of the equation)

$x =\frac{-3}{9}$ (simplifies the fraction)

$x =\frac{-1}{3}$

Resolving graphically:

x = 1 --------- 9 (1) +3 = 12 pt (1.12)

x = -1 --------- 9 (-1) +3 = -6 pto (-1, -6)

x = -1 / 3 -------- 9 (-1/3) +3 = 1 pt (-1 / 3.0) Solution

The graphic is shown in the attached image. The red dot in the graph represents the solution

For equation N°. 6.

$4x + 11 = 4x-24\\$

Solving algebraically:

$4x -4x +11 = 4x -4x-24$ (Sum -4x on both sides of the equation)

$11 = -24$ The equation is not met, the x are eliminated, therefore, it has solution

For equation N°. 8

$-6x +3 = -6x + 5\\$

Solving algebraically:

$-6x + 6x +3 = -6x + 6x +5$ (Sum 6x on both sides of the equation)

$3 = 5$ The x are eliminated, 3 is not equal to 5, the equality is not met. The equation has no solution.

7 0

4 years ago

Rani has at most $20 to spend on a canoe rental. To rent a canoe $12.To use the canoe cost $3 an hour. Write an inequality that

Julli [10]

Answer:

Rani can use the rented canoe for $h\leq 2\frac{2}{3}$ hours.

Step-by-step explanation:

Given:

Rani has at most $20 to spend on a canoe rental.

To rent a canoe $12.To use the canoe cost $3 an hour.

The number of hours is $h.$

Now, to find $h$ the number of hours rani can use the rented canoe.

Total money Rani has at most to spend = $20.

The rent of a canoe = $12.

The cost of using canoe per hour = $3.

According to question:

Now, to find the number of hours rani can use the rented canoe:

$3h+12\leq 20$

Subtracting both sides by 12 we get:

$3h\leq 8$

Dividing both sides by 3 we get:

$h\leq \frac{8}{3}$

$h\leq 2\frac{2}{3}$

Therefore, Rani can use the rented canoe for $h\leq 2\frac{2}{3}$ hours.

7 0

3 years ago