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3 years ago

HELPPPPP I DONT KNOW THIS

Mathematics

2 answers:

blsea [12.9K]3 years ago

8 0

C
20% increase

$50 + 20% = $60

Marta_Voda [28]3 years ago

4 0

Answer:

C. 20% increase

Step-by-step explanation:

Process of Elimination: Remove options A and B from the answer choices since 60 > 50, so it can't be a decrease.

We're left with 20% and 25%

To represent 20%, do .2 x 50 which gives you 10.

If 10 + 50 = 60, then it was a 20% increase. Which 10 + 50 is 60.

So the answer is 20% increase.

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Can someone please explain what I have to do

Pepsi [2]

Answer:

16.7 cm

Step-by-step explanation:

Area of a triangle = ½*base*height

Area of the shaded region = area of triangle = 100.2 cm³

base = w

height = 12 cm

Plug in the value into the equation:

½*w*12 = 100.2

6w = 100.2

w = 100.2/6

w = 16.7 cm

4 0

3 years ago

Softa [21]

Answer:

Lol I had the same question

Step-by-step explanation:

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3 years ago

The average weight of 3 containers A,B and C is 3.2kg. Container A is twice as heavy as container B. Containers B is 400 g heavi

dlinn [17]

Answer:

The weight of container C is 2.1kg.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x is the weight of container A.

y is the weight of container B.

z is the weight of container C.

The average weight of 3 containers A,B and C is 3.2kg.

This means that the total weight is 3*3.2 = 9.6kg. So

$x + y + z = 9.6$

Container A is twice as heavy as container B.

This means that $x = 2y$ .

Containers B is 400 g heavier than container C.

400g is 0.4kg. So

This means that $y = z + 0.4$ , or $z = y - 0.4$

Replacing y and z as functions of x in the first equation:

$x + y + z = 9.6$

$2y + y + y - 0.4 = 9.6$

$4y = 10$

$y = \frac{10}{4} = 2.5$

Container C

$z = y - 0.4 = 2.5 - 0.4 = 2.1$

The weight of container C is 2.1kg.

4 0

3 years ago

Suppose a newspaper surveys 250 adults in a neary town and inquires about their cell phone carrier. The accompanying table summa

Margarita [4]

Answer:

The correct option is C.

No. The sum of the relative frequencies is 95%, not 100%

Step-by-step explanation:

In a<u> relative frequency distribution</u>, the value assigned to each class is the proportion of the total data set that belongs in the class.

We have given the statement:

Suppose a newspaper surveys 250 adults in a nearby town and inquires about their cell phone carrier. The accompanying table summarizes the results. Does this table describe a relative frequency distribution

The correct option is C.

No. The sum of the relative frequencies is 95%, not 100%

4 0

3 years ago

Read 2 more answers

You need to arrange 10 of your favorite books on a small shelf. How many different ways can you arrange the books, assyming that

tensa zangetsu [6.8K]

Answer:

You can arrange the books 3,628,800 different ways.

Step-by-step explanation:

You can imagine that the shelf has 10 "slots" where you can place a book. Each slot can take 1 of the 10 books. However, after you have placed 1 book, there are only 9 possible books to place. After 2 have been placed, there are only 8 possible.

Going left-to-right, the first slot has 10 available books.

Total combinations: 10

The 2nd slot has 9 available books.

Total combinations: 10 * 9

The 3rd slot has 8 available books.

Total combinations: 10 * 9 * 8

This continues for all 10 slots.

Eventually, for slot 10, there is only 1 book possible.

Total combinations: 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1

Multiply all numbers between 10 and 1 with each other is also known as "10 factorial" or "10!"

Thus, the total number of combinations is:

$10! = 10*9*8*7*6*5*4*3*2*1 = 3628800$

Answer: You can arrange the books 3,628,800 different ways.

8 0

3 years ago