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3 years ago

Simplify 20x over 70x

Mathematics

2 answers:

kakasveta [241]3 years ago

6 0

The answer is 2/7
hope that helps!!

Sergeeva-Olga [200]3 years ago

5 0

Answer:

The answer is 2/7.

Step-by-step explanation:

You have to cut out the common terms :

$\frac{20x}{70x}$

$\frac{20}{70}$

$\frac{2}{7}$

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Select all the expressions that could represent the volume of a box, which is a third degree polynomial in variables x and y.

Citrus2011 [14]

Answer:

A and D

Step-by-step explanation:

Third degree polynomials refers to polynomials that has 3 as the greatest power of the variable.

A. 3 x y − 3 x y^2

Degree = 1 + 2 = 3

This option is correct

B 2y - xy^3 + 7

Degree = 1 + 3 = 4

This option is wrong

C. 3x^3y^2 -3x^2y + 10y^2 - 10y

Degree = 3 + 2 = 5

This option is wrong

D. 3x^2y+5xy

Degree = 2 + 1 = 3

This option is correct

E. 3y^3 + 3x^3 y^4

Degree = 3 + 4 = 7

This option is wrong

6 0

3 years ago

How can I solve that problem

drek231 [11]

What do we know so far:

$2\frac{2}{3}laps$ in $\frac{4}{15}hour$ ⇒ $\frac{8}{3}laps$ in $\frac{4}{15}hour$

*we converted the number of laps into improper fractions

$2\frac{2}{3} = \frac{8}{3}$

We want to know the number of laps in an hour

⇒ so we must find the rate which ⇒ lap/hour

$lap/hour =\frac{8/3laps}{4/15hours} =\frac{8}{3}*\frac{15}{4} =\frac{8}{4} *\frac{15}{3} =2*5=10laps/hour$

So William can run ⇒ 10 laps in one hour

Hope that helps!

8 0

2 years ago

A rectangular bathroom floor is covered with square tiles that are 1 1/2 feet by 1 1/2 feet. The length of the bathroom floor is

kenny6666 [7]

Answer:

The number of square tiles required to cover the bathroom floor is approximately 31.

Step-by-step explanation:

The dimensions of the rectangular floor of the bathroom are:

Length = 10.5 ft.

Breadth = 6.5 ft.

The dimensions of the square tiles are:

Side = 1.5 ft.

The area of the rectangular floor of the bathroom is:

$Area\ of Bathroom\ floor=Length\times Breadth\\=10.5\times6.5\\=68.25$

The area of 1 square tile:

$Area\ of\ 1\ square\ tile=(SIde)^{2}\\=(1.5)^{2}\\=2.25$

The number of tiles required to cover the bathroom floor is:

$Number\ of\ tiles=\frac{Area\ of\ bathroom\ floor}{Area\ of\ 1\ square\ tile} \\=\frac{68.25}{2.25}\\ =30.3333\\\approx31$

Thus, the number of square tiles required to cover the bathroom floor is approximately 31.

6 0

3 years ago

Imagine having friends :(

Ymorist [56]

Answer:

I couldn't

The ones I used to be friends with now all hate me lol ;-;

Step-by-step explanation:

8 0

3 years ago

University Law School accepts 4 out of every 9 applicants. If the school accepted 280 students, find how many applications they

Nesterboy [21]

Answer: 630

Step-by-step explanation:

Accepts: 4/9

x times 4/9 = 280

x = 630

3 0

3 years ago