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Liula [17]
3 years ago
12

What is the approximate result of converting 20 centimeters into inches? remember that 1inch = 2.54centimeters

Mathematics
2 answers:
marta [7]3 years ago
6 0
20 cm * 1 inch / 2.54 cm = <span> <span> <span> 7.874015748 </span> </span> </span> inches
So the approximate result is 20 cm = 7.9 inches


Umnica [9.8K]3 years ago
5 0

Answer:

7.9 inches.

Step-by-step explanation:

We are asked to find the approximate length for converting 20 centimeters into inches.

We know that 1 inch = 2.5 centimeters.

\text{1 centimeter}=\frac{1}{2.54}\text{ inch}

\text{20 centimeter}=\frac{20}{2.54}\text{ inch}

\text{20 centimeter}=7.874015748\text{ inch}\approx 7.9\text{ inch}

Therefore, 20 centimeters are approximately 7.9 inches.

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How many cubic centimeters is 5 cubic meters.
tresset_1 [31]
The key to solving this question is first knowing how many cubic cm are in one cubic m:

The ratio is always 1000000 cubic cm in 1 cubic meter.

Knowing this, we calculate how many cubic cm are in 5 cubic meters!

<u>1000000 cubic cm </u>= <u>1 </u><span><u>cubic m</u>
      x </span>cubic cm           5 cubic m

x = 1000000 cubic cm x 5 cubic m ÷ 1 cubic m
x = 5<span>000000 cubic cm

Hope this helps!
Feel free to message me if you have any questions :)</span>
4 0
3 years ago
Read 2 more answers
A math teacher graded 45 problems in 3/5 of an hour. At that rate, how many problems can she grade in one hour
dolphi86 [110]

Answer:

75

Step-by-step explanation:

45*1/3=15

15*5=75

6 0
3 years ago
Read 2 more answers
Scott has a rope 8 metres long. He says, “I need 9 pieces each 0.89 metres long.’’ Will Scott have enough ribbon?
Lelechka [254]

Answer:

B

Step-by-step explanation:

How did it go from "rope" to "ribbon", therefore, the statement is incorrect. This is a man-made equation that clearly has a mistake. If it was to say, "Will Scott have enough rope?" then the answer will be "YES"

7 0
3 years ago
The 1997 a value of an object was $5000. In 2012, it was worth $9500. The annual percent growth has been constant. What is the a
Daniel [21]
<h3>Annual percent growth is 4.37 %</h3>

<em><u>Solution:</u></em>

<em><u>The increasing function is given as:</u></em>

y = a(1+r)^t

Where,

y is future value

a is initial value

r is growth rate

t is number of years

From given,

a = 5000

y = 9500

t = 1997 to 2012 = 15 years

r = ?

<em><u>Substituting the values we get,</u></em>

9500 = 5000(1+r)^{15}\\\\(1+r)^{15} = 1.9\\\\Take\ \frac{1}{15}th\ power\ on\ both\ sides\\\\1+r = (1.9)^{\frac{1}{15}}\\\\1+r = 1.04367\\\\r = 1.04367 - 1\\\\r = 0.04367\\\\In\ percentage,\\\\r = 0.04367 \times 100 \%\\\\r = 4.367 \% \approx 4.37 \%

Thus annual percent growth is 4.37 %

8 0
3 years ago
A pair of jeans priced 20 $ are subjected 5 % sales tax. how much are the jeans
lawyer [7]

5% of 20 is 1


1 Dollar added so the jeans is now 21 dollars

5 0
3 years ago
Read 2 more answers
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