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MatroZZZ [7]
2 years ago
15

The sum of two-fifths of a number and three-tenths of the number.

Mathematics
2 answers:
Lena [83]2 years ago
6 0

Answer:

Seven out of ten

Step-by-step explanation:

enyata [817]2 years ago
6 0

Answer:

7/10

Step-by-step explanation:

2/5+3/10=4/10+3/10=7/10

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Select the correct answer from each drop-down menu.
slamgirl [31]

A coordinate system in geometry is a system that employs one or more integers. The coordinates of point H are (66, -19).

<h3>What are coordinates?</h3>

A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold such as Euclidean space.

The coordinates of point A are (-3, 9), and the coordinates of point B are (9, 5). Therefore, the difference between any two coordinates can be written as,

Difference

x ⇒ 9 - (-3) = 9 + 3 = 12

y ⇒ 5 - 9 = -4

Now, since the point are at equal distances, therefore, the difference in their coordinates will be the same as well,

The coordinates of point C are,

x = 9 + 12 = 21

y = 5 + (-4) = 1

  • The coordinates of point C are (21, 1).
  • The coordinates of point E are (39, -7).
  • The coordinates of point H are (66, -19).

Learn more about Coordinates:

brainly.com/question/23450276

#SPJ1

3 0
1 year ago
Please anyone help me with this question​
nikklg [1K]

Answer:

8uv÷v²

but putting the value of u and v.

8×2×4 ÷ 4²

=64÷16

=4

8 0
2 years ago
Find the derivative
zalisa [80]

First use the chain rule; take y=\dfrac{x+5}{x^2+3}. Then

\dfrac{\mathrm df}{\mathrm dx}=\dfrac{\mathrm df}{\mathrm dy}\cdot\dfrac{\mathrm dy}{\mathrm dx}

By the power rule,

f(x)=y^2\implies\dfrac{\mathrm df}{\mathrm dy}=2y=\dfrac{2(x+5)}{x^2+3}

By the quotient rule,

y=\dfrac{x+5}{x^2+3}\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{(x^2+3)\frac{\mathrm d(x+5)}{\mathrm dx}-(x+5)\frac{\mathrm d(x^2+3)}{\mathrm dx}}{(x^2+3)^2}

\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{(x^2+3)-(x+5)(2x)}{(x^2+3)^2}

\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{3-10x-x^2}{(x^2+3)^2}

So

\dfrac{\mathrm df}{\mathrm dx}=\dfrac{2(x+5)}{x^2+3}\cdot\dfrac{3-10x-x^2}{(x^2+3)^2}

\implies\dfrac{\mathrm df}{\mathrm dx}=\dfrac{2(x+5)(3-10x-x^2)}{(x^2+3)^3}

6 0
2 years ago
{(4x+2y=6),(-2x+2y=18):} Solve by using the elimination method
Degger [83]

Answer:

\displaystyle [-2, 7]

Step-by-step explanation:

You want to eradicate one pair of variables so they are set to zero. It does not matter which pair is selected:

\displaystyle \left \{ {{4x + 2y = 6} \atop {-2x + 2y = 18}} \right.

{½[4x + 2y = 6]

{−2x + 2y = 18

>> \displaystyle \left \{ {{2x + y = 3} \atop {-2x + 2y = 18}} \right. \\ \\ \frac{3y}{3} = \frac{21}{3} \\ \\ \\ y = 7

Plug this back into the system to get the x-value of \displaystyle -2.

I am joyous to assist you at any time.

4 0
1 year ago
ron has 2500 pounds of sod to deliver. He wants to deliver an equal amount of sod on each 4 trips. write an equation for s the a
Rama09 [41]
4s= 2500.  2500 divided by 4 equals 625 
6 0
3 years ago
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