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KatRina [158]
3 years ago
8

The surface area of an open-top box with length L, width W, and height H can be found using the

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
7 0

Answer:

174 square cm

Step-by-step explanation:

2(9×4) + 2(6×4)+ 9×6

2(36) + 2(24) + 54

72 + 48 + 54

120 + 54

174

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4(x^2 - 5) + 2(3x^2 + 6)
Dmitriy789 [7]

Answer:

=10x2−8

Step-by-step explanation:

4(x2−5)+2(3x2+6)

Distribute:

=(4)(x2)+(4)(−5)+(2)(3x2)+(2)(6)

=4x2+−20+6x2+12

Combine Like Terms:

=4x2+−20+6x2+12

=(4x2+6x2)+(−20+12)

=10x2+−8

5 0
2 years ago
Read 2 more answers
Are the following linear, quadratic , exponential
marusya05 [52]

Answer:

if you look up what a exponential looks like it should help

Step-by-step explanation:

3 0
3 years ago
Eggs are packaged by the dozen. if a dozen eggs cost $1.20, what is the unit price per egg?
Kitty [74]

Answer:

$0.10

Step-by-step explanation:

$1.20 divided by 12

4 0
3 years ago
Read 2 more answers
Which situation could be represented by the open sentence 15 - 5 = p?
True [87]

Answer:

Option B.

Step-by-step explanation:

We need to find the situation that could be represented by the sentence 15-5=P.

Option A:

Stuart is reading a book that has a total of 15 chapters. He reads 5 chapters every day. How many days will it take Stuart to finish the book?

Let the number of days be d.

15-5d=0

Option B:

Stuart is reading a book that has a total of 15 chapters. He has already read 5 chapters. How many chapters of the book are left for Stuart to read?

Let the number of remaining chapters be p.

15-5=p

Option C:

Stuart is reading a book that has a total of 15 chapters. This book has 5 chapters less than the book Stuart read last week. How many chapters were in the book Stuart read last week?

Let the number of chapters in the book Stuart read last week be n.

n-5=15\Rightaarow n=15+5

Option D:

Stuart is reading a book that has a total of 15 chapters. This is 5 times the number of chapters as the book Stuart read last week. How many chapters were in the book Stuart read last week?

Let the number of chapters in the book Stuart read last week be n.

15=5n

Therefore. the correct option is B.

5 0
3 years ago
The sum of two numbers is 79. Three times the first number added to 5 times the second number is 283. What are the two numbers?
Karolina [17]

Answer:

<u><em>The two numbers are 56 and 23.</em></u>

Step-by-step explanation:

Let the two numbers be A and B.

We are told that:

A+B = 79, and

2)  3A + 5B = 283

Rearrange the first expression to isolate A:

A = 79-B

Now use this value of B in the second expression:

3A + 5B = 283

3(79-B) + 5B = 283

237-3B + 5B = 283

2B = 46

B = 23

If B=23, we can find A from (1):  

A+B = 79

A+23 = 79

A = 56

<u>CHECK:</u>

Does A+B = 79?

56 + 23 = 79?  <u><em>YES</em></u>

Does 3A + 5B = 283?

  3(56) + 5(23) = 283?

 168 + 115 = 283?  <u><em>YES</em></u>

6 0
2 years ago
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