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3 years ago

Twenty-Eight plus what number equals forty one. What is it....

Mathematics

2 answers:

UkoKoshka [18]3 years ago

8 0

Answer:

The number is (13) carrot duh

kow [346]3 years ago

7 0

Answer:

Step-by-step explanation:

41-28+13

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Please need help with this math question

fenix001 [56]

X=15

Hope this helps!!!

3 0

3 years ago

In a survey of 90 students 20 choose rock.40 chose hip hop 30 chose country. In a school of 360 students how many would be expec

lina2011 [118]

Answer:

The students would be expected to choose rock be 80 or students choose hip hop be 160 or choose to country be 120.

Step-by-step explanation:

Given:

In a survey of 90 students 20 choose rock, 40 choose hip hop and 30 choose country.

Now, to find the students expected to choose hip hop or rock or country in a school of 360 students.

Let the number of students expected to choose rock be $x.$

Let the number of students expected to choose hip hop be $y.$

Let the number of students expected to choose country be $z.$

Total number of students = 360.

Now, to get the number of students choosing hip hop or rock or country by using cross multiplication method:

In a survey of 90 students 20 choose rock.

So, 90 is equivalent to 20.

Thus, 360 is equivalent to $x$ .

$\frac{90}{20} =\frac{360}{x} \\\\By\ cross\ multiplying\ we\ get:\\\\90x=7200\\\\Dividing\ both\ sides\ by\ 90\ we\ get:\\\\x=80.$

Thus, the number of students expected to choose rock is 80.

Now,

In a survey of 90 students 40 choose hip hop.

So, 90 is equivalent to 40.

Thus, 360 is equivalent to $y.$

$\frac{90}{40} =\frac{360}{y} \\\\By\ cross\ multiplying\ we\ get:\\\\90y=14400\\\\Dividing\ both\ sides\ by\ 90\ we\ get:\\\\y=160.$

Therefore, 160 students expected to choose hip hop.

And,

In a survey of 90 students 30 choose country.

So, 90 is equivalent to 30.

Thus, 360 is equivalent to $y.$

$\frac{90}{30} =\frac{360}{z} \\\\By\ cross\ multiplying\ we\ get:\\\\90x=10800\\\\Dividing\ both\ sides\ by\ 90\ we\ get:\\\\x=120.$

Hence, 120 students expected to choose country.

Therefore, the students would be expected to choose rock be 80 or students choose hip hop be 160 or choose to country be 120.

5 0

4 years ago

The rectangle graphed has a length of 3 and a width of 2. How does the perimeter change if the width is increased by 4? A) The p

storchak [24]

Answer:

The answer to your question is the letter D.

Step-by-step explanation:

Data

First rectangle Second rectangle

length = 3 length = 3

width = 2 width = 2 + 4 = 6

Process

1.- Calculate the Perimeter of the first rectangle

Perimeter = 2l + 2w

Perimeter = 2(3) + 2(2)

= 6 + 4

= 10

2.- Calculate the perimeter of the second rectangle

Perimeter = 2(3) + 2(6)

Perimeter = 6 + 12

Perimeter = 18

3.- Compare both perimeters

Perimeter 1 is smaller than Perimeter 2 by 8 units

4 0

3 years ago

Angela makes a pillow in the shape of a wedge to use for watching tv. The pillow is 12 feet three squares of fluffy material

Hunter-Best [27]

Answer:

4 feet.

Step-by-step explanation:

Please consider the complete question.

Angela makes a pillow in the shape of a wedge to use for watching tv. The pillow is filled with 12 cubic feet of fluffy material. The base is 3 ft, the height is 2 ft. What is the length measure?

We know that a wedge is in form of triangular prism, so the volume of wedge will be equal to volume of triangular prism.

$\text{Volume of triangular prism}=\frac{1}{2}(\text{length}\times\text{ width}\times \text{Height})$

Upon substituting our given values in above formula, we will get:

$12\text{ ft}^3=\frac{1}{2}(\text{length}\times3\text{ ft}\times \text{2 ft})$

$12\text{ ft}^3=\text{length}\times3\text{ ft}^2$

$\frac{12\text{ ft}^3}{3\text{ ft}^2}=\frac{\text{length}\times3\text{ ft}^2}{3\text{ ft}^2}$

$4\text{ ft}=\text{length}$

Therefore, the length of the pillow is 4 feet.

3 0

3 years ago

Read 2 more answers

Find size of angle x pls..

mina [271]

Answer:

x = 115

Step-by-step explanation:

Sum of angles around a point = 360

i.e,

=> 164 + 81 + x = 360

=> 245 + x = 360

=> x = 360 - 245

=> x = 115

6 0

2 years ago

Read 2 more answers