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
Delicious77 [7]
3 years ago
7

There are 4 identical wooden blocks that are 20 inches long, 2 inches

Mathematics
1 answer:
Talja [164]3 years ago
3 0

Answer:

Step-by-step explanation:

Each block has two 20×1 faces, two 20×2 faces, and two 2×1 faces.

Surface area of one block = 2(20×1) + 2(20×2) + 2(2×1) = 124 sq in

Total surface area = 4(124) = 496 sq in.

Largest surface area: Assemble the blocks end-to-end into a block that is 80 by 2 by 1. Six of the 2 by 1 faces are hidden, so the surface area is 496 - 6(2×1) = 484 sq in.

Smallest surface area: Assemble the blocks into a block that is 20 by 4 by 2. Four of the 20 by 2 faces and four of the 20 by 1 faces are hidden, so the surface area is 496 - 4(20×2) - 4(20×1) = 256 sq in.

Difference in surface area = 484-256 = 228 sq in.

You might be interested in
Given the function f(x)=X^2- 3x, find f(-4)
sladkih [1.3K]
Put -4 in place of x
-4 to the second power is 16 so it would be 16-(-12)= 28
5 0
2 years ago
How do we Factorise 5y -6 py​
____ [38]

Answer:

See explanation.

Step-by-step explanation:

5y-6py

Common factor: y

y(5-6p)

3 0
2 years ago
The World Issues club has decided to donate 60% of all their fundraising activities this year to Stephen Lewis
andreyandreev [35.5K]

Answer:

a. Let the variable be x for the fundraising activities and M as the revenue for foundation.

b. M =0.60x

c. $43.2

d. $1416.67

Step-by-step explanation:

Given that:

The World Issues club donates 60% of the total of their fundraising activities.

Answer a.

Let us choose the variable x to represent the money earned during fundraising activities and M for the revenue generated for foundation.

Answer b.

Foundation will receive 60% of the total of the fundraising activities.

Equation to determine the money that will be received by foundation:

M = 60\%\ of\ x\\OR\\M = 0.6x

Answer c.

Given that x = $72, M = ?

Putting the value of x in the equation above:

M = 0.6 \times 72\\\Rightarrow \$43.2

Answer d.

Given that M = $850, x = ?

Putting the value of M in the equation above to find x:

850= 0.6 \times x\\\Rightarrow x = \dfrac{850}{0.6}\\\Rightarrow x = \$ 1416.67

So, the answers are:

a. Let the variable be x for the fundraising activities and M as the revenue for foundation.

b. M =0.60x

c. $43.2

d. $1416.67

5 0
3 years ago
-11+(-6)= <br><br> Negative 11 to -6 in parentheses equals
daser333 [38]
Equals to -17
add the two negatives together
3 0
2 years ago
Read 2 more answers
The cost of a canoe rental is $15 deposit plus $6 per hour.The total rental cost is​
Scrat [10]

Answer:

its 90

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • What should i get for my birthday ? answer quickly plz ( its on june 3rd ) ( i need help)
    8·2 answers
  • Representatives running for office are handing out items to voters. Every 8th voter gets a button. Every 10th voter gets a stick
    15·1 answer
  • Answer to this please with EXPLANATION! BIG POINTS!!!
    11·2 answers
  • Can someone pls help me with this thanks
    8·1 answer
  • The space shuttle releases a space telescope into orbit
    14·1 answer
  • First to answer get's brainly.
    9·1 answer
  • Find the equation of the line.
    8·1 answer
  • PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. <br> IM GIVING 40 POINTS !! DONT SKIP :((.
    8·2 answers
  • Sin^2 a/2 - sin a/2 + 1/4 = 0​
    9·1 answer
  • Point C. is the mid Point of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!