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Yuki888 [10]
3 years ago
5

What is the decimal multiplier to decrease by 39%

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
7 0

Answer:

The decimal multiplier to decrease by 39% is 0.61.

Step-by-step explanation:

Decimal multipliers:

For a increase of a%, the decimal multiplier is given by \frac{100+a}{100}

For a decrease of a%, the decimal multiplier is given by \frac{100-a}{100}

Decrease of 39%

So a = 39, and:

\frac{100-a}{100} = \frac{100-39}{100} = \frac{61}{100} = 0.61

The decimal multiplier to decrease by 39% is 0.61.

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Answer:

The average cost of each dinner at Dave's party is <u>$5.79</u>.

Step-by-step explanation:

Given:

Dave ordered dinner for a party of 10 people.

Three people ordered the $4.75 chicken dinner, two people ordered the $4.95 fish dinner, and five had the beef dinner at a cost of $6.75 each.

Now, to find the average cost of each dinner at Dave's party.

So, we get the total amount for the dinner:

Three people ordered the $4.75 chicken dinner.

4.75\times 3=14.25

Two people ordered the $4.95 fish dinner.

4.95\times 2=9.90

Five had the beef dinner at a cost of $6.75.

6.75\times 5=33.75

Total amount of dinner = 14.25+9.90+33.75=\$57.90.

Now, to get the average cost of each dinner of 10 people we divide the total amount of dinner by 10:

57.90\div 10

=\$5.79.

Therefore, the average cost of each dinner at Dave's party is $5.79.

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