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3 years ago

The ratio of boys to girls in a group is 3 to 1 is there are 28 more boys then girls workout how many people their are it total

Mathematics

1 answer:

worty [1.4K]3 years ago

5 0

Answer:

56 total

Step-by-step explanation:

Let the number of girls = x

Let the number of boys = 3x

x 1

=== = ==========

x + 28 3

Cross multiply

3x = x + 28 Subtract x from both sides

3x - x = 28 Combine

2x = 28 Divide by 2

x = 28/2

x = 14

Girls = 14

Boys = 14 + 28 = 42

Is the ratio 3 to 1?

42/14 = 3/1 Yes it does

Total number

14 + 42 = 56

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During a sale, a store offered a 20% discount on a TV that originally sold for $710. After the sale, the discounted price of the

Mademuasel [1]

Answer:

$681.60

Step-by-step explanation:

Given:

During a sale, a store offered a 20% discount on a TV that originally sold for $710. After the sale, the discounted price of the TV was marked up by 20%

To Find:

What was the price of the TV after the markup? Round to the nearest cent.

Solution:

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2 years ago

The base of a ladder is 10 feet away from a vertical building. The ladder top rests at the top of the building. The ladder's ang

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3 years ago

If the probability of surviving a head on car accident at 55 mph is 0.097, then what is the probability of not surviving

BabaBlast [244]

The probability of not surviving a head-on car accident is: 0.903

Step-by-step explanation:

The probabilities of occurrence and non-occurrence of an event add up to one.

If p is the probability that an even will happen and q is the probability that it will not happen

Then

$p+q=1$

Here,

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Probability of not surviving = q = ?

$0.097 + q = 1\\q = 1 - 0.097\\q = 0.903$

The probability of not surviving a head-on car accident is: 0.903

Keywords: Probability, Inverse

Learn more about probability at:

#LearnwithBrainly

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3 years ago

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romanna [79]

Answer:

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Step-by-step explanation:

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