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
just olya [345]
3 years ago
6

(Giving 100 pts, help fast!!!) Four congruent square pieces with lengths of sides of 6 cm were cut out of corners of a square pi

ece of cardboard. Then this piece of cardboard was folded into an open-top box. Find the original dimensions of the piece of cardboard if the volume of the resulting box is 486 cm3.
Mathematics
2 answers:
Tamiku [17]3 years ago
5 0

Answer:

21x21 cm

Step-by-step explanation:

Volume =whl

Given: V=486, and h=6, and w=l

So we can it into this equation: 486=6(l^2)

to solve we isolate the variable by dividing each side by factors that don't contain the variable.

which therefore l = 9

Then we add 6(height) +9(l)+6(width)

6+9+6=21 therefore the sides of cardboard are 21 cm × 21 cm

Vesnalui [34]3 years ago
4 0

Answer:

21cm^2

Step-by-step explanation:

V=B*h

B=(x-12)^2

h=6

(x-12)^2*6=486

Solve using quadratic equation and you get 21 and 3.

3 doesn't work so it is 21

You might be interested in
The sum of a number x and 5 equals 14
pav-90 [236]

Answer:

x=9

Step-by-step explanation:

Since x+5=14, then you would subtract 5 from 14. 14-5=9. So that means x equals 9.

3 0
3 years ago
Read 2 more answers
The stadium sold the same number of tickets each hour for 8 hours. If they sold 2,000 tickets in all, how many tickets did they
kramer
C. 250
2,000 ÷ 8 = 250
7 0
3 years ago
The sum of two numbers is 12. The difference of the same two numbers is 24. what is the larger of the two numbers
Vsevolod [243]

ANSWER


The larger number is 18

<u>EXPLANATION</u>

Let x be the larger number and y be the smaller  number.


Then,

x+y=12--(1)


x-y=24--(2)


Let us add equation (1) and (2).


2x=36


Divide through by 2


x=18


Put x=18 in to equation (1).

This implies that,

18=y=12



y=12-18=-6




4 0
3 years ago
When each side of an equation has been simplified, equations that have BLANK coefficients and BLANK constants on each side have
kobusy [5.1K]

Answer:

The answer is below

Step-by-step explanation:

An equation shows the relationship between two or more variables. An equation is a statement that shows the equality between expressions. An equation with infinitely many solution is when all numbers are solutions, that is there is no one solution. Example is: x + 3 = x + 3.

When each side of an equation has been simplified, equations that have the same coefficients and the same constants on each side have infinitely many solutions

7 0
2 years ago
[(21 + 5) ÷ 2] + 7 • (8 - 3) equals
kow [346]
[(21 + 5) ÷ 2] + 7 × (8 - 3)
[26 ÷ 2] + 7 × (8 - 3)
13 + 7 × (8 - 3)
13 + 7 × 5
13 + 35
48
6 0
3 years ago
Other questions:
  • 50 points and brainliest for whoever gives the best and clearest answer !
    8·2 answers
  • Tell whether the two figures are similar. Explain your reasoning​
    10·1 answer
  • How many sign changes are in the polynomial f(x) = 3x3 + 7x2 + 9x - 1
    9·1 answer
  • What is the slope of the line
    9·2 answers
  • Identifying relationships from diagrams
    5·1 answer
  • Need answer now !!
    6·2 answers
  • In circle A below, ∠BAE ≅ ∠DAC.
    6·2 answers
  • The number of students who attended Lincoln Middle School last year was 860. This year, the attendance has increased to 1032 stu
    6·2 answers
  • Please help me on here brainiest for best answer no wrong answers please
    8·1 answer
  • Simplify the following expression 4(x−8)−7x + 3 (in a test)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!