All categories

3 years ago

A number is Multiplied by 3 and 5 is added. If one half of the new nummber is 16, what was the first number

Mathematics

1 answer:

borishaifa [10]3 years ago

5 0

Step-by-step explanation:

The original number is x.

The new number is 3x + 5.

We know that 0.5(3x + 5) = 16, so 3x + 5 = 32.

3x + 5 = 32, 3x = 27, x = 9.

Hence the original number is 9.

You might be interested in

How to do this question by proving the identity?

jeyben [28]

$\sin^3 \theta-\cos^3 \theta=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\
(\sin \theta-\cos \theta)(\sin^2 \theta+\sin \theta\cos \theta +\cos^2 \theta)=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\
(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)=(\sin \theta-\cos \theta)(\sin \theta\cos \theta+1)\\\\$

6 0

3 years ago

5 is 5% of what number?

iragen [17]

Answer:

100

Step-by-step explanation:

8 0

3 years ago

HELP PLEASE! FAST! WILL GIVE 5 STARS AND THANKS!<br> 5/6 x 18

Yuri [45]

Answer:

Step-by-step explanation:

5/6 * 18

Rearranging

5 * 18/6

5 *3

3 0

3 years ago

The volume inside of a sphere is V=4πr33 where r is the radius of the sphere. Your group has been asked to rearrange the formula

Semmy [17]

Answer:

Therefore,

$r=\sqrt[3]{\frac{3V}{4\pi }}$

is the required r

Step-by-step explanation:

Given:

Volume of inside of the sphere is given as

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

where r is the radius of the sphere

To Find:

r =?

Solution:

We have

$V=\frac{4}{3} \pi r^{3}$ ......Given

$3\times V=4\pi r^{3} \\\\\therefore r^{3}=\frac{3V}{4\pi } \\\\\therefore r=\sqrt[3]{\frac{3V}{4\pi }} \textrm{which is the expression for r}$

Therefore,

$r=\sqrt[3]{\frac{3V}{4\pi }}$

is the required r

5 0

3 years ago

Is the dilation of -3/4 a contraction or an expansion?

lyudmila [28]

I don't under stand

5 0

3 years ago

A number is Multiplied by 3 and 5 is added. If one half of the new nummber is 16, what was the first number​

A number is Multiplied by 3 and 5 is added. If one half of the new nummber is 16, what was the first number