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Oksanka [162]
2 years ago
9

Calculate the length of the circumference of a circle with diameter of 7cm (1dp)

Mathematics
1 answer:
AysviL [449]2 years ago
7 0
22.0. diameter times pie to get your answer then round to 1dp
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How many batches of muffins can you make from a 4lb bag of sugar if a batch takes 3/4 cup
slava [35]
Four batches should be the correct answer
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Pam has 15 candies in her bag. Her mother puts another handful of candies into the bag. Pam counts all the candies and she now h
julsineya [31]

Answer: 15+X=27

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2 years ago
What conversions need to be performed to find the number of drops in 20ml
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5 0
3 years ago
A collector has 100 movie posters and 80 band posters. She wants to sell 30 movie posters but still have her poster collection m
umka2103 [35]

Answer: 24 band posters should be sold

Step-by-step explanation:

First take the expression down to its simplest form;

= 5:4

Assume she sells 30 movie posters, her movies posters drop to;

= 100 - 30

= 70 movie posters

We need a number of band posters remaining that will give a ratio of 5:4 with movie posters.

In fraction form, the number of movie posters is;

= 5/9 because 9 would be the total number of both movie posters and band posters.

Create an expression to find the total number of posters if 70 are movie posters;

5/9x = 70

x = 70 ÷ 5/9

x = 126 posters

Number of band posters that should be left are;

= 126 - 70

= 56

Number of band posters that should be sold;

= 80 - 56

= 24 posters

<em>The new ratio would be 70:56.</em>

5 0
2 years ago
Estimate the square root of 24 to the nearest hundredth
fenix001 [56]

9514 1404 393

Answer:

  √24 ≈ 4.90

Step-by-step explanation:

The square root can be estimated using a linear interpolation between the perfect squares on either side of the number of interest.

  4² = 16

  5² = 25

So, √24 can be estimated to be ...

  (24 -16)/(25 -16) +4 = 8/9 +4 = 44/9 ≈ 4.8888...

This estimate can be refined by doing one iteration of the Babylonian method. That averages the current guess with the value obtained by dividing 24 by that guess.

  √24 ≈ (44/9 +24(9/44))/2 = 4 89/99 ≈ 4.898989...

  √24 ≈ 4.90

_____

A calculator gives the root as approximately 4.89897948557. Rounded to hundredths, that is 4.90.

3 0
3 years ago
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