All categories

3 years ago

Work out 11.5% of 320

Mathematics

1 answer:

KiRa [710]3 years ago

7 0

11.5/100 (320)
184/5 (decimal:36.8)

hope this helps!

You might be interested in

One leg of a right triangle is 4 cm the hypotenuse is 10 cm how long it the other leg

ASHA 777 [7]

I hope this will work.

3 0

3 years ago

Read 2 more answers

Use the quadratic formula to solve x2 + 2x - 120 = 0. Think about what other method could also be used to solve this equation. a

pshichka [43]

Answer:

x = 10 , -12

Step-by-step explanation:

Solution:-

- The given quadratic equation is to be solved using the quadratic formula. The general form of a quadratic equation is:

$ax^2 + bx + c =0$

Where, [ a , b and c are constants ]

- The quadratic formula is given as:

$x = \frac{-b+/-\sqrt{b^2 - 4*a*c} }{2a}$

- The given equation is:

$x^2 + 2x - 120 = 0$

Where, a = 1 , b = 2 , c = -120

- Solve using quadratic formula:

$x = \frac{-2+/-\sqrt{2^2 - 4*1*(-120)} }{2*1}\\\\x = \frac{-2+/-\sqrt{4 + 480} }{2}\\\\x = \frac{-2+/-(22) }{2}\\\\\\x = 10 , -12$

7 0

3 years ago

Suppose that a rectangular picture is surrounded by a frame of uniform width of x

user100 [1]

Answer:

Ok so the area of the frame is 18*12 = 216cm^2

Let’s suppose the width of the frame is x

The total area (painting and frame) is (2x+18)(2x+12) and this is equal to 432

4x^2 + 60x + 216 = 432

4x^2 + 60x - 216 = 0

x^2 + 15x - 54 = 0

(x+18)(x-3) = 0

Therefore x = {-18,3}

Since width of the frame has to be positive, the width has to be 3cm Step-

i hope i helped!

3 0

2 years ago

What is a solution to the equation 5x + 2y = -1?

Hunter-Best [27]

The answer to the solution of the equation 5x+2y=-1 is 1,-3)

5 0

3 years ago

Which sets of measurements could be the side lengths of a triangle?

Varvara68 [4.7K]

Answer:

Step-by-step explanation:

easy way to take a note

is that the sum of the 2 first angles much be greater than the 3rd one

so A

4 0

2 years ago

Read 2 more answers