1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erik [133]
3 years ago
5

A rectangular prism has a length of 7 cm, a width of 4 cm, and a height of 2 1/2cm. The prism is filled with cubes that have edg

e lengths of cm.
How many cubes are needed to fill the rectangular prism? (I got 140, but I dunno if that's right)​
Mathematics
1 answer:
just olya [345]3 years ago
8 0

there are 54 cubes in a rectangular prisum

You might be interested in
Geometry :))), please help me
amm1812

Answer:

x = -5

Step-by-step explanation:

Since these two triangles are similar, the ratio between the corresponding lengths of each triangle will be the same.

This means the ratio between one side of each triangle (e.g. AD and DC) will be the same as the ratio between a different side of each triangle (e.g. BE and BC).

So, to create an equation for the sides which contain the unknown 'x', we must first find the ratio between the two sides by using a different set of sides.

On the right side we are given 9 for AD, and 18 for DC.

9/18 = 0.5

This means that the extra length of the larger triangle from the smaller one (AD) is half the length of the smaller triangle (DC). We can use this to make an equation for x:

If AD/DC = 0.5, then BE/EC will also = 0.5

BE = x+23

EC = x+41

Therefore:

\frac{x+23}{x+41} = 0.5

Now we can solve by multiplying both sides by x+41 to eliminate the fraction:

x+23=0.5(x+41)

Now we multiply out the brackets and move the terms to different sides:

x+23=0.5x+20.5

0.5x = -2.5

x = -5

And if we substitute the -5 into the equations:

-5+23 = 18

-5 + 41 = 36

We will see that -5 does indeed give us the same ratio between the lengths:

18/36 = 0.5

Hope this helped!

4 0
3 years ago
How high is the poster?
Mila [183]

Answer:

24

Step-by-step explanation:

12 x 2

7 0
3 years ago
Read 2 more answers
Jane bough 1.5 pounds of chicken, then went back to the store and bought 1 13/16 More pounds, how many total pounds did she buy
Studentka2010 [4]

Answer:

Step-by-step explanation:

1.5 + 1 13/16

O.5 = 1/2

(1+1)+(1/2 + 13/16)

2 + (8/16 + 13/16) = 2 21/16

4 0
2 years ago
Help ill give brainliest
stellarik [79]

Answer:

$28.68

Step-by-step explanation:

57.24+64.08

121.32

150-121.32

6 0
3 years ago
Read 2 more answers
6x + 9 &lt; 63<br> what is x?
Natalija [7]
6x + 9 < 63

Subtract 9 from both sides.

6x < 54

Divide 6 by both sides.

x < 9
7 0
2 years ago
Read 2 more answers
Other questions:
  • Solve for Y showing all work: y-8=13
    11·1 answer
  • The reciprocal of 1/50 is _____. 0 1 50
    12·2 answers
  • Can you please help me with the problem in the image below?
    12·1 answer
  • Please I need some answers
    12·2 answers
  • I need help please!!!??
    6·2 answers
  • Mrs. Jones decided to buy some pencils for her class. She bought 5 packages of pencils, and each package contained 42 pencils. T
    7·1 answer
  • GIVING BRAINLIEST
    11·1 answer
  • TWO QUESTIONS BELOW:
    7·1 answer
  • Ik I don't normally ask actual questions but how do you multiply radicals T^T pls
    9·2 answers
  • I need help with this problem ASAP!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!