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sammy [17]
2 years ago
12

A cube has a surface area of 54 square centimeters.

Mathematics
2 answers:
umka21 [38]2 years ago
6 0

Answer:

27

Step-by-step explanation:

iragen [17]2 years ago
3 0

Answer:27cm^3

Step-by-step explanation:

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A 70 cm long stick is cut into two parts in such a way that the longer part is 20 cm longer than the shorter part. How long is e
Pachacha [2.7K]

Answer:

The longer part is <u>45 cm</u> long and the shorter part is <u>25 cm</u> long.

Step-by-step explanation:

Given:

A 70 cm long stick is cut into two parts in such a way that the longer part is 20 cm longer than the shorter part.

Now, to find the length of each part of the stick.

Let the shorter part be x.

So, the longer part is x+20.

Total length of the stick = 70 cm.

Now, to get the length of each part we solve an equation:

(x)+(x+20)=70\\\\x+x+20=70\\\\2x+20=70\\\\Subtracting\ both\ sides\ by\ 20\ we\ get:\\\\2x=50\\\\Dividing\ both\ sides\ by\ 2\ we\ get:\\\\x=25.

<em>The length of the shorter part is 25 cm.</em>

Now, substituting the value of x:

x+20\\\\=25+20\\\\=45\ cm.

<em>The length of longer part is 45 cm.</em>

Therefore, the longer part is 45 cm long and the shorter part is 25 cm long.

6 0
3 years ago
There are 45 questions on your math exam. You answered 8/10 how many questions did you answer correctly?
Dima020 [189]
36 questions correctly
4 0
3 years ago
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Angle A=6x-35^ angle B=3x+53^ B Solve for and then find the measure of angle A :
stealth61 [152]

Answer:

22

Step-by-step explanation:

7 0
3 years ago
Emir made $182 in interest by placing $700 in a savings account with simple interest for 2 years. What was the interest rate?
Pavlova-9 [17]

Answer:

7.69230%

R=I/P×T

R=$182/$700×2

R=182/1400

R=91/700

=7.69230%

6 0
3 years ago
What is the first step to solving 3.7x – 15.9 = 2.97?
jenyasd209 [6]
Add -15.9 to both sides so it’ll look like 3.7x=18.87
8 0
2 years ago
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