2 years ago

Ten marbles are in a bag. Four of the marbles are red.

Mathematics

1 answer:

victus00 [196]2 years ago

5 0

Answer:

40% or 4/10

Step-by-step explanation:

If 4 out of the 10 marbles are red, you simply divide them (4/10).

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Ares of a rectangular floor of your house is Ax+5x-2. if the length is x+2 units, find A

Snezhnost [94]

Answer:

A=4.

Step-by-step explanation:

Note: In the expression of area the first term should be $Ax^2$ .

It is given that area of a rectangular floor of your house is $Ax^2+5x-2$ and the length is $(x+2)$ units.

We know that, area of a rectangle is

$Area=length\times width$

Since length of the rectangle is $(x+2)$ , therefore $(x+2)$ is a factor of $Ax^2+5x-2$ and the value of $Ax^2+5x-2$ is 0 at x=-2.

$A(-2)^2+5(-2)-2=0$

$4A-10-2=0$

$4A-12=0$

$4A=12$

Divide both sides by 4.

$A=4$

Therefore, the value of A is 4.

7 0

3 years ago

The ratios in an equivalent ratio table are 3:12, 4:16, and 5:20. If the first number in theratio is 10, what is the Second numb

Zanzabum

Answer:

10:40

Step-by-step explanation:

As the left number increases by 1, the right number increases by 4. So as you can see, the left numbers go 3-4-5 while the right numbers go 12-16-20. So the answer is 10:40 because 10x4=40.

6 0

3 years ago

Read 2 more answers

The output is 11 more than the input A: y=x+11 B: y=11x C: y=x/11 D: x=y=11

Alchen [17]

The answer would be A

5 0

3 years ago

Solve the equation for the indicated variable (for c) <img src="https://tex.z-dn.net/?f=15%20%3D%20%20-%203%282c%20%2B%20d%29

11Alexandr11 [23.1K]

Answer:

c= -2.5-0.5d

Step-by-step explanation:

15=-3(2c+d)

15=-6c+-3d

15+3d=-6c

-2.5-0.5d=c

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3 years ago

Simplify. (-2y^3)^3(-3x^2yz^2)^3

Alik [6]

=-8y^9*-27x^6y^3z^6

=216x^6y^12z^6

6 0

2 years ago