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3 years ago

A grocery store had 38 employees but then they hired 4 more people. What is the percent change in their staff?

Mathematics

2 answers:

Setler79 [48]3 years ago

5 0

Answer:

+ 10.53 % change

Step-by-step explanation:

Percent change is 4 more people added to 38

4 / 38 * 100% = 10.53 %

stepan [7]3 years ago

5 0

38+4=42
38=100%
42=42/38 X 100% =110 10/19%
110 10/19% - 100% = 10 10/19%

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20% of 37.35 for math

Bogdan [553]

Answer:

7.47

Step-by-step explanation:

37.35 x 20%

37.35 x .20

7.47

4 0

3 years ago

A tennis tournament has 2n contestants. We want to pair them up for the first round of singles matches. Show that the number of

ddd [48]

There are

$\dbinom{2n}2 = \dfrac{(2n)!}{2! (2n-2)!}$

ways of pairing up any 2 members from the pool of $2n$ contestants. Note that

$(2n)! = 1\times2\times3\times4\times\cdots\times(2n-2)\times(2n-1)\times(2n) = (2n-2)! \times(2n-1) \times(2n)$

so that

$\dbinom{2n}2 = \dfrac{(2n)\times(2n-1)\times(2n-2)!}{2! (2n-2)!} = \boxed{n(2n-1)}$

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2 years ago

Select all the situations that can be represented by 1/2⋅5. * 1 point Diego lives 5 miles from school, and Elena lives 1/2 as fa

SpyIntel [72]

Answer:

Elena lives 2.5 miles away from school.
The total liters of water is 2.5 liters
He can cut 10 pieces of rope of length 1/2 meter
The fraction of her goal she ran is 1/10

Step-by-step explanation:

From the question,

Diego lives 5 miles from school, and Elena lives 1/2 as far away as Diego

Therefore, Elena lives 1/2 of 5 miles away from school.

1/2 of 5 miles = 2.5 miles

Hence, Elena lives 2.5 miles away from school.

Jada has 5 bottles that each contain 1/2 liter of water.

Since each bottle contain 1/2 liter of water, then

The total liters of water is (1/2 × 5) liters

1/2 × 5 = 2.5 liters

Hence, the total liters of water is 2.5 liters

Noah has 5 meters of rope

To determine how many pieces of rope of length 1/2 meter he can cut,

Number of pieces of rope of length 1/2 meter that can be cut is 5 meter ÷ 1/2 meter

5 meter ÷ 1/2 meter = 10

Hence, he can cut 10 pieces of rope of length 1/2 meter.

Lin's goal is to run 5 miles. She ran 1/2 mile.

To determine what fraction of her goal that is,

First, she ran 1/2 mile out of 5 miles.

The fraction of her goal she ran is 1/2 mile ÷ 5 miles

1/2 mile ÷ 5 miles = 1/10

Hence, the fraction of her goal she ran is 1/10.

8 0

4 years ago

Find the missing number in this proportions

iren2701 [21]

Answer:

Step-by-step explanation:

If 28 ends up becoming 4, 7 is what they have to divide to make 4 a numerator. That means you have to divide 63 by 7 which would make 9.

5 0

4 years ago

The wholesale price for a pair of shoes is $8.50. A certain department store marks up the wholesale price by 90%. Find the price

maks197457 [2]

Answer:

$16.15

Step-by-step explanation:

<u>The wholesale price:</u>

$8.50

<u>Selling Price:</u>

$8.50 + 90% = $8.50 *1.9 = $16.15

Pair of shoes sold for $16.15 in the store

5 0

3 years ago