1 year ago

A chef at a restaurant cooks 90 meals in one day. 35% of the 90 meals were vegetarian. How many meals were vegetarian?

Mathematics

1 answer:

serg [7]1 year ago

6 0

Answer is 31.5% vegetarian. Here is the my work. Hope this helps!

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What is the term of a 7-term geometric series if the first term is -11 the last term is -45,056 and the common ratio is -4

shutvik [7]

I assume you mean to ask how to find the sum of the seven terms?

You have

$a_2=ra_1$
$a_3=ra_2=r^2a_1$
$a_4=ra_3=r^3a_1$
...
$a_7=ra_6=r^6a_1$

So the sum is

$a_1+ra_1+r^2a_1+\cdots+r^6a_1=a_1(1+r+r^2+\cdots+r^6)=a_1\times\dfrac{1-r^7}{1-r}$

You know that $a_1=-11$ and $r=-4$ , so the sum is equal to

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Brittany removed half of the total number of marbles from her bag, and gave one fourth of the remaining marbles to her friend. W

patriot [66]

The fraction of the total number of marbles is left in the bag after removing and giving part to her friend is 3/8

<h3>Fraction</h3>

let

Number of marbles in her bag = x
Number of marbles removed from her bag = 1/2x

Remaining marbles = x - 1/2x

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= 1/4 × 1/2x

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Number of marbles left in the bag = Remaining marbles - Number of marbles given to her friend

= 1/2x - 1/8x

= (4x-x) / 8

= 3x/8

= 3/8x

Learn more about fraction:

brainly.com/question/11562149

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A chef at a restaurant cooks 90 meals in one day. 35% of the 90 meals were vegetarian. How many meals were vegetarian?​

A chef at a restaurant cooks 90 meals in one day. 35% of the 90 meals were vegetarian. How many meals were vegetarian?