All categories

2 years ago

????????????????????????1

Mathematics

1 answer:

Rashid [163]2 years ago

8 0

The answer should be C

You might be interested in

How to simplify 81 1/2

VladimirAG [237]

81=81•2/2=162/2
81 1/2=162/2+1/2
=163/2
So 81 1/2=163/2=81.5

8 0

2 years ago

Read 2 more answers

Please help with these Math question's ASP.

vodomira [7]

Answer:

See below in bold.

Step-by-step explanation:

1. x/8 = 15/24

Cross multiplying:

24x = 8*15

x = (8*15)/24

x = 5.

2. 5/6 = 35/x

5x = 6*35

5x = 210

x = 210/5

x = 42.

3. 18/42

Divide top and bottom by 6:

18 / 6 / 42/6

= 3/7.

4. 15/75

Divide top and bottom by 15:

= 1/5.

5 0

3 years ago

140 converted to kilometres

yuradex [85]

225.30816
Hope this helped :)))

3 0

3 years ago

Which equation represents the line shown?

vredina [299]

Answer:

Step-by-step explanation:

The line is running only across coordinate points with an x coord of 2

5 0

1 year ago

Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3

Basile [38]

Answer:

The mass of the steel ball is 4,235.9 gr

Step-by-step explanation:

Density

The density ρ of a substance is a measure of its mass per unit volume:

$\displaystyle \rho=\frac{m}{V}$

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

$m=\rho.V$

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

$\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3$

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

$\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3$

Calculating:

$V=523.6\ cm^3$

The mass is:

$m=8.09 gr/cm^3 \cdot 523.6\ cm^3$

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

4 0

2 years ago