Work out the circumference of a circle with diameter 1.8 cm.Take it to be 3.142 and give your answer to 1 decimal place.

Answers

Answer 1

Answer:

Answer: 5.7

Step-by-step explanation:

Multiply the diameter by pi 3.14

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What is the least common multiple of 49 and 28?

Answers

least common mulitplue is the smallest number that has 49 and 28 as factors

so to do this
find the factor so 49 and 28 and gropu all of them so both are in it

49=7 times 7
28=2 times 2 times 7
therefor yo need at least two 7's and two 2's
that equals
7 times 7 times 2 itme s2=49 times 4=196

answer is 196

Answer:

The least common multiple is 196

Step-by-step explanation:

I had this test I got this question and I got correct.

3 friends are sharing 1 1/2 pizza what fraction of pizza does each friend get

Answers

If their are 3 friends sharing 1.5 pizza you simply divide 1.5/3 = 1/2
Each friend gets 1/2 of the pizza

Since 3 friends are sharing 1 1/2 of the pizza they will get 1/2 of that pizza. Mmmmmm... so good! :-)

Write the number name for 45,391

Answers

The correct answer is Forty-Five Thousand Three Hundred And Ninety-One

What is 4 1/5+3 1/10

a. 7 2/15
b. 7 3/10
c. 7 1/5
d. 7 1/50

Answers

7 1/5th is the anwser but thats easy your just being lazy i think

75% of what number is 42?

Answers

75 percent of the number 56 is 42.

Let the unknown number be x.

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Here, 75% of x is 42

75% of x= 42

75/100 ×x= 42

0.75x=42

x=42/0.75

x= 56

Therefore, 75 percent of the number 56 is 42.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ6

Answer:

56

Step-by-step explanation:

$\bold{METHOD\ 1:}\n\n\begin{array}{ccc}100\%&-&x\n75\%&-&42\end{array}\qquad\text{cross multiply}\n\n75x=(100)(42)\n75x=4200\qquad\text{divide both sides by 75}\n\boxed{x=56}$

$\bold{METHOD\ 2:}\n\np\%=(p)/(100)\to75\%=(75)/(100)=0.75\n\n75\%\ of\ x\ is\ 42\to0.75x=42\qquad\text{divide both sides by 0.75}\n\n\boxed{x=56}$

ellen had 25 hair clips,7 of them were blue and the rest are purple.what percent of hair clips were purple

Answers

Ellen had 25 hair clips. 7 of them were blue and the rest were purple. What percent of hair clips were purple?

To find out how many hair clips are purple, we can subtract 7 from 25 to see how many hair clips are purple. 25 - 7 = 18 so we now know that 18 hair clips are purple.

The fraction $(18)/(25)$ represents the number of purple hair clips Ellen has out of all the hair clips together.

To find what percent of the hair clips are purple, we can turn this into a fraction.

18 ÷ 25 = 0.72

0.72 × 100 = 72%

Therefore, 72% of Ellen's hair clips were purple.

Answer=72%

25-7=18purple clips

18 x
____=____
25 100

cross multiply
25x=1800
divide both sides by 25
x=72%

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