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Furkat [3]
3 years ago
10

I need help on how to do combinations

Mathematics
1 answer:
Veronika [31]3 years ago
3 0
Ok sure! Let's start with the marbles first. We have one red one blue and one green. There is a red and a blue cube. All we do is list the possible combinations of one marble and one cube. The answer would be : 1 blue marble, 1 blue cube. 1 red marble, 1 blue cube. 1 green marble, 1 blue cube. Then again but with the red cube. So in all, there are 6 possible combinations. Hope this helps. ☺️
You might be interested in
Show whether each value in the set {2,3,4} is a solution of the equation x + 2 = 6.
enyata [817]

Answer:

4

Step-by-step explanation:

Plug in each given value into the expression to see if it is true.

Set given: {2 , 3  , 4}

Equation given: x + 2 = 6

First, plug in 2 for x. When x = 2:

x + 2 = 6

(2) + 2 = 6

4 ≠ 6.

Next, plug in 3 for x. When x = 3:

x + 2 = 6

(3) + 2 =6

5 ≠ 6.

Finally, plug in 4 for x. When x = 4:

x + 2 = 6

(4) + 2 = 6

6 = 6 (True).

In the given set, only 4 complete the equation.

~

7 0
3 years ago
Eddie compared prices of two auto-rental agencies for the use of a mid-size auto for one week. Right Price Auto charged a flat f
Sonbull [250]

Answer:

A. 386 + .20m = 344 + .35m

280 miles

Step-by-step explanation:

A. 386 + .20m = 344 + .35m

B. 344 + .20m = 386 + .35m

C. 344 + 20m = 386 + 35m

D. 386 + 20m = 344 + 35m

Right Price Auto charged a flat fee of $386 plus $0.20 per mile driven.

Right price auto = fixed charge + variable charge

= 386 + .20m

Where m = number of miles

EconoCar charged a flat fee of $344 plus $0.35 per mile driven.

EconoCar = fixed charge + variable charge

= 344 + .35m

Where m = number of miles

Equate the total charges of both auto-rental agencies

Right price auto = EconoCar

386 + .20m = 344 + .35m

Collect like terms

386 - 344 = .35m - .20m

42 = .15m

Divide both sides by .15

m = 42 / .15

= 280

m = 280 miles

4 0
3 years ago
How many sides does a regular polygon have with one central of 18 degrees?
Natalka [10]
All of the centra angles in a regular polygon must add up to 360 degrees. Also, because you're told that it is a regular polygon, the "regular" indicates that all of the central angles will be the same. Divide 360 degrees by 18 degrees to get the number of central angles, which is the same as the number of sides. 360/18 = 20. Therefore, the polygon has 20 sides. Hope that helps!
7 0
3 years ago
Grandma has 4 bags of soil for her flower pots each flower pot needs 3/4 of a bag of soil how many flower pots can she fill
Ostrovityanka [42]

Answer:

she can fill 5 pots and have 1/3 bag left over

Step-by-step explanation:

4 0
3 years ago
ALGEBRA QUESTION PLS HELPS
cluponka [151]

The value of x is –7.

Solution:

Given expression:

$\left(\frac{1}{x+3}+\frac{6}{x^{2}+4 x+3}\right) \cdot \frac{x+3}{x+1}

Let us factor x^2+4x+3.

x^2+4x+3=(x+1)(x+3)

Substitute this in the fraction.

$\left(\frac{1}{x+3}+\frac{6}{(x+1)(x+3)}\right) \cdot \frac{x+3}{x+1}

To make the denominator same, multiply and divide the first term by (x +1).

$\left(\frac{(x+1)}{(x+1)(x+3)}+\frac{6}{(x+1)(x+3)}\right) \cdot \frac{x+3}{x+1}

Denominators are same, you can add the fractions.

$\left(\frac{x+1+6}{(x+1)(x+3)}\right) \cdot \frac{x+3}{x+1}

$\frac{x+7}{(x+1)(x+3)} \cdot \frac{x+3}{x+1}

Cancel the common term in the numerator and denominator.

$\frac{x+7}{x+1} \cdot \frac{1}{x+1}

Multiply the fractions.

$\frac{x+7}{(x+1)^2}

$\frac{x+7}{x^2+2x+1}

The expression is simplified to one rational expression.

Suppose the expression is equal to 0.

$\frac{x+7}{x^2+2x+1}=0

Do cross multiplication.

${x+7}=0\times (}{x^2+2x+1})

Any number or variable multiplied by 0 gives 0.

${x+7}=0

Subtract 7 from both sides of the equation.

${x+7-7}=0-7

x = –7

The value of x is –7.

7 0
3 years ago
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