Ask question

Ask question

All categories

Hunter-Best [27]

4 years ago

6

Express number 9 as a unit rate, you can also round

1 answer:

Katena32 [7]4 years ago

6 0

125/200= 0.625 cents

0.625 cents to the nearest cent= 0.63

The unit rate is 0.63 miles.

Hope this helps!

You might be interested in

I need to solve x-y=2 and x+y=-6

Fynjy0 [20]

Answer:

There isn't an answer for it because there is a variable

5 0

3 years ago

Read 2 more answers

Express answer in exact form.

Karo-lina-s [1.5K]

Radii and chord form an equilateral triangle. The angle of the larger segment is $360^o-60^o=300^o$ .

The length of the larger segment is

$l= \frac{2r\pi\alpha}{360^o}= \frac{2\times 8\pi300^o}{360^o}= \frac{ 16\pi5}{6}= \frac{ 8\pi5}{3}=\frac{ 40\pi}{3}$

3 0

3 years ago

Factor 18x^(2)+39x-15

k0ka [10]

Answer:

$3(2x + 5)(3x - 1)$

Step-by-step explanation:

Hello!

We can first factor out the greatest common factor between the coefficients: 3.

$f(x) = 18x^2 + 39x - 15$
$f(x) = 3(6x^2 + 13x - 5)$

Now, let's work with what we have inside the brackets.

Standard form of a quadratic: $ax^2 + bx+ c = 0$

Given our equation: $6x^2 + 13x - 5$

a = 6
b = 13
c = -5

We need to find two numbers that add up to b (13) and multiply to ac (-30).

The two numbers are 15 and -2. Expand 13x to 15x and -2x and factor by grouping.

<h3>Factor by Grouping</h3>

$6x^2 + 13x - 5$
$6x^2 -2x + 15x - 5$
$2x(3x- 1) +5(3x - 1)$
$(2x +5)(3x - 1)$

Now, we simply add the other factor, 3, to the final factored form.

Factored Solution: $3(2x + 5)(3x - 1)$

8 0

2 years ago

This rectangle and right triangle have the same perimeter.

GuDViN [60]

Answer:

0.18 cm²

Step-by-step explanation:

Given that a rectangle and a triangle have same perimeter . The sides of them are ,

$\begin{cases} Square = 4cm , 4cm , 3cm \ and \ 3cm .\\ Triangle = 4cm , 5.8cm \ and \ 4.2cm \end{cases}$

We know that area of rectangle is product of length and breadth.

$\implies Area = length \times breadth \\\\\implies Area = 4cm \times 3cm\\\\\implies \red{ Area = 12cm^2}$

Also we know that the area of triange is half the product of base and height . So that ,

$\implies Area = \dfrac{1}{2}\times 5.8cm \times 4.2 cm \\\\\implies \red{ Area = 12.18 cm^2 }$

Therefore the difference between them is ,

$\implies D = A_1 - A_1 \\\\\implies D = 12.18cm^2-12cm^2 \\\\\implies \red{D = 0.18 cm^2}$

3 0

3 years ago

Paolo and Monika are both travelling by train.

NISA [10]

Answer:

2911.5 km/h

Step-by-step explanation:

To tackle this question, you need to work out the average speed of each train and then find the difference.

Note that they want the answer km per hour.

Use the equation speed = distance / time

Paolo's train : 70 km × (35 / 60)

= 24.5 km/h

Monica's train :

For Monica's train you have to work out the time taken.

16 : 15 to 20 : 45 = 4.5 hours

Now subsitute into the speed = distance / time equation.

684km x 4.5 hrs

= 2916 km/s

Now find the difference between the two average speeds.

2916 - 4.5 = 2911.5 km/h

hope this helps :)

6 0

3 years ago