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3 years ago

ANSWER ALL QUESTIONS

Mathematics

2 answers:

Dominik [7]3 years ago

8 0

1. 3

29-9=19

13+9=22

22-19=3

I don't know number 2, sorry.

RideAnS [48]3 years ago

5 0

Aye yu taking a test?

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a Can of soup has a diameter of 2.5 inches and a height of 4 inches. how much metal is needed to make the can? round your answe

Ratling [72]

First the 2 bases have surface area pi*1.25^2*2

Then the side

2.5pi*4=10pi

total of 9.817+31.415

=41.232

This approximation could be further round down for this problem to 41.2

Which makes choice C the correct choice.

7 0

4 years ago

Am stuck on this question and show your working please.

Tamiku [17]

Answer:

1. 6pi or 18.84cm

2. 20pi or 62.8cm

3. 13pi or 40.82cm

4. 9.5pi or 29.83cm

5. You calculate the circumference of a circle with the expression 2pi(r). r stands for the radius. You can also use pi(d), or pi x diameter.

7. You would use 2pi(r) to find the circumference of a circle when given the value of the circle's radius.

8. You would use pi(d) to find the circumference of a circle when given the value of the circle's diameter.

5 0

3 years ago

Anyone know wat 792 divided by 5 is?

tigry1 [53]

Answer:

158.4 i think

Step-by-step explanation:

4 0

3 years ago

Write 0.414141414141 as a fraction?

igor_vitrenko [27]

Answer:

The fraction is 41/99.

Step-by-step explanation:

The steps are :

$let \: x \: be \: fraction,$

$x = 0.414141.....$

$100x = 41.414141.....$

$100x - x = 41.414141..... \: - \: 0.414141.....$

$99x = 41$

$x = \frac{41}{99}$

4 0

3 years ago

22. One kilometer is approximately 0.62 mile. What fraction represents this length?

bixtya [17]

Answer:

One kilometer is $\frac{31}{50}$ miles

Explanation:

To convert a decimal to a fraction:

1- Write the decimal as a fraction whose denominator is 1

2- Multiply both numerator and denominator by multiples of 10 to eliminate the decimal point

3- Simplify the fraction you have

Now, for the given problem:

The given decimal is 0.62, following the above steps:

Step 1:

$0.62 = \frac{0.62}{1}$

Step 2:

We have two digits after the decimal point, so to eliminate the decimal point, we will multiply the numerator and the denominator by 100

$0.62 = \frac{0.62}{1} * \frac{100}{100} = \frac{62}{100}$

Step 3:

We can note that, in the fraction obtained from step 2, both the numerator and the denominator are divisible by 2, so we simplify as follows:

$\frac{62}{100} = \frac{62/2}{100/2} =\frac{31}{50}$

Hope this helps :)

6 0

3 years ago