All categories

3 years ago

What is the missing width of the speaker below when its volume is 30,000 cm3 ?

Mathematics

2 answers:

zysi [14]3 years ago

7 0

Answer:

Width = 20 cm.

Step-by-step explanation:

Given : A cuboid of volume 30, 000 cm³ with length 30 cm and height 500 mm.

To find : What is the missing width of the speaker below when its volume is 30,000 cm³ .

Solution : We have given that

Volume of cuboid = 30,000 cm³.

Length = 30 cm .

Height = 500 mm .

1 mm = $\frac{1}{10}$ cm.

500 mm = $\frac{500}{10}$ cm.

500 mm = 50 cm.

Then height = 50 cm .

Volume of cuboid = length * width * height .

Plugging the values of volume , length , height .

30,000 = 30 * width * 50 .

30,000 = 1500 * width .

On dividing both side by 1500 and switching the sides.

Width = $\frac{30000}{1500}$ .

Width = 20 cm.

Therefore, Width = 20 cm.

choli [55]3 years ago

5 0

3,000,000 mm / 300 mm = 10000 mm
10,000 mm / 500 mm = 20 mm

20 mm OR 0.2 cm

You might be interested in

I giveeeeeeeeeeee brainlillstttttttttttt

Lana71 [14]

Answer:

after reflection over y axis

a 9,7

b 9,6

c 0,6

d 0,7

4 0

3 years ago

Read 2 more answers

A pencil and a ruler cost $1.50 together. The ruler costs $1.00 more than the pencil. How much does the pencil cost?

Vlad1618 [11]

So we want to know how much does the pencil costs if the ruler costs 1$ more than the pencil and together they cost 1.5$. So lets start with converting dollars into cents. Lets turn this into an equation. Ruler is x and the pencil is y. So together ruler and pencil cost 150cents or: x+y=150 cents. The ruler costs 100 cents more than the pencil, or: (x+100 cents ) + y = 150 cents. So we see that we need to put the values of x=25 cents and y=25 cents to get the ruler to cost 125 cents which is 100 cents or 1$ more than the pencil. So the pencil costs 25 cents.

7 0

3 years ago

Find the value of x in the triangle shown below. 13 5 х

katen-ka-za [31]

Answer:

x=12

Step-by-step explanation:

This is a right triangle, so the Pythagorean theorem can be used. The Pythagorean theorem states that $C^2=a^2+b^2$ where C is the hypotenuse and a and b are legs. In this question, we are given a and C. So, plugin 13 for C and 5 for a and solve for b. Once you rearrange the equation you get, $b=\sqrt{13^2-5^2}$ . Next, solve what is under the root to get, $b=\sqrt{144}$ . Finally, square root 144 for the final answer b=12.