All categories

3 years ago

The volume of a cuboid is 40cm3.

Mathematics

1 answer:

Gwar [14]3 years ago

3 0

Answer:

The height of the cuboid = 5 cm

Step-by-step explanation:

Explanation:-

Given that the volume of the cuboid = 40 cm³

Given that length of the cuboid (l) = 2 cm

Given that the width of the cuboid (w) = 4 cm

The volume of the cuboid is determined by

$V = length X width X height$

40 = 2× 4× h

h = 5

The height of the cuboid = 5 cm

You might be interested in

Please answer number 12. Very urgent!! 18 points!

Ksenya-84 [330]

Answer:

10 5/12

When the numerator is larger than the denominator, we take groups of whole fractions (The numerator and denominator are equal) and add 1 to the whole number for each group. Whatever remains when we no longer have the numerator larger than the denominator is left as a fraction.

Step-by-step explanation:

6 3/4 + 3 2/3

We need to get a common denominator

The common denominator is 12

We need to rename the fractional parts to out of 12

6 3/4 = 6 3/4*3/3 = 6 9/12

3 2/3 = 3 2/3*4/4 = 3 8/12

6 9/12+ 3 8/12

9 17/12

But the numerator is larger than the denominator

We take 12/12 from the fraction and add it to the whole number

9 17/12-12/12 +1

9+1 5/12

10 5/12

4 0

4 years ago

Solve the simultaneous equations: 2 + y = 7 2x +y= 11 x= ,y= I need help asap :(

KATRIN_1 [288]

Answer:

y= 5

x= 2x+5=11 --- 2x=11-5--- 2x/6

x=3

4 0

3 years ago

Identify a possible first step using the elimination method to solve the system and then find the solution to the system.

olchik [2.2K]

Answer:x = 1

y = 1

Step-by-step explanation:

The given system of simultaneous equations is expressed as

3x - 5y = - 2 - - - - - - - - - - - - 1

2x + y = 3 - - - - - - - - - - - - - 2

The first step is to decide on which variable to eliminate. Let us eliminate x. Then we would multiply both rows by numbers which would make the coefficients of x to be equal in both rows.

Multiplying equation 1 by 2 and equation 2 by 3, it becomes

6x - 10y = - 4

6x + 3y = 9

Subtracting, it becomes

- 13y = - 13

y = - 13/- 13 = 1

The next step is to substitute y = 1 into any of the equations to determine x.

Substituting y = 1 into equation 2, it becomes

2x + 1 = 3

2x = 3 - 1 = 2

x = 2/2 = 1

8 0

3 years ago

The radius of the cone is 7 in and y = 25 in. What is the volume of the cone in terms of π? A cone with a right triangle formed

Lady bird [3.3K]

Answer:

142.1π in³

Step-by-step explanation:

Given that:

The radius (r) = 7 in

The slant height (y) = 25 in

Then the height (x) can be determined by using the Pythagoras rule:

y² = x² + r²

25² = x² + 7²

125 = x² + 49

125 - 49 = x²

x² = 76

x = √76

x = 8.7

The formula for the volume of a cone is;

= 1/3 πr²h

where;

height(h) is calculated as "x" from above = 8.7

Then;

= 1/3 × π × (7 in)² × 8.7 in

= 142.1π in³

5 0

3 years ago

Read 2 more answers

Ms. Robinson gave her class 12 minutes to read. Carrie read 5 1/2 pages in that time. At what rate, in pages per hour, did Carri

cricket20 [7]

The answer is: " 27.5 pages " ; or, write as: " 27 $\frac{1}{2}$ pages " .
____________________________________________________________

5.5 pages / 12 minute = ? pages / 60 minutes;

12 * 5 = 60 ;

5.5 * 5 = ?

5.5 * 5 = 27.5
____________________________________________________________
The answer is: " 27.5 pages " ; or, write as: " 27 $\frac{1}{2}$ pages " .
____________________________________________________________

4 0

3 years ago