All categories

3 years ago

What is 4/5 - 1/2? Explain how you got your answer in complete sentences.

1 answer:

4 0

So you start of by makig the denominator the same so you would multiply 2 by 4 to get 8 on the left and then multiply 5 by 1 to get five allowing you multiply 5 by 2 to get a common denominator that means so far we have 8/10 and 5/10 then you would just take them away from each other giving you 3/10

You might be interested in

2 times -1/4 times 3

NemiM [27]

Answer:

-1.5

Step-by-step explanation:

2 times -1/4 is -0.5. -0.5 times 3 is -1.5

5 0

3 years ago

Q25 A train travelling at a speed of 30km/h crosses a bridge 25m long in 12 sec. How long will it take to overtake a another tra

Makovka662 [10]

Answer:

WHAT

Step-by-step explanation:

8 0

3 years ago

Help me please thank you

BabaBlast [244]

Let's use a formula in order to find how much the interior angles are supposed to add up to.

(n-2)×180; n is the number of angles.

(5-2)×180= 3×180=540

We need for the interior angles to add up to 540. Let's make an equation.

100+102+108+121+x=540

431+x=540; let's find x.

540-431= 109

So, X= 109°

3 0

3 years ago

‼️GEOMETRY‼️

ella [17]

Answer:

A.) 1018 square inches

Step-by-step explanation:

The largest sphere will have a diameter equaling the length of the cube (see picture).

If the side length of the cube is 18 inches, the diameter of the sphere is also 18 inches. Use the surface area formula for a circle:

$SA=4\pi r^2$

For this formula, we need the radius of the sphere. Divide the diameter by 2:

$\frac{18}{2}=9$

The radius is 9 inches. Plug this into the equation:

$SA=4\pi *9^2$

Simplify the equation:

$SA=4\pi *81\\\\SA=324\pi \\\\SA=1017.87$

Round the result to the nearest whole number:

$1017.87$ → $1018$

The surface area is 1,018 inches².

:Done

Picture:

In a 2D version, we can clearly see that if the circle fits snuggly inside of the square, the diameter of a sphere is the same as the length of a side of the cube.

6 0

2 years ago

Select the correct expressions.

olchik [2.2K]

Answer:

A linear algebraic equation is nice and simple, containing only constants and variables to the first degree (no exponents or fancy stuff). To solve it, simply use multiplication, division, addition, and subtraction when necessary to isolate the variable and solve for "x". Here's how you do it: 4x + 16 = 25 -3x =

5 0

3 years ago