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2 years ago

Work out the answers to these questions 47+ 6.2 +86.7 79.88+59+4.55

Mathematics

1 answer:

Lilit [14]2 years ago

3 0

Answer:

1. 139.9

2. 143.43

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Write a cosine equation with the following properties:

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2 years ago

In this line of circles, the ratio of red circles to blue circles is 1:3 How many more circles would need to be added to make th

zaharov [31]

Answer:

The number of red circles to be added would be equal to 8 times the original amount of red circles

Step-by-step explanation:

Let

x ----> the number of red circles

y ----> the number of blue circles

Originally

$\frac{x}{y}=\frac{1}{3}$

$y=3x$ ----> equation A

How many more circles would need to be added to make the ratio of red to blue 3:1

Let

n ----> the number of additional red circles

$\frac{x+n}{y}=\frac{3}{1}$ ----> equation B

substitute equation A in equation B

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solve for n

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therefore

The number of red circles to be added would be equal to 8 times the original amount of red circles

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2 years ago