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fredd [130]
3 years ago
5

I need help solving please

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
5 0

Answer:

1/2

Step-by-step explanation:

Probability = Favorable outcomes / Total number of outcomes

=> Purple + Blue / Total

=> 6 + 4 / 20 (Because there are 6 purple and 4 blue and 10 green)

=> 10 / 20

=> 1/2

If this helped, Please mark me as the brainliest!

Thank you!

tensa zangetsu [6.8K]3 years ago
3 0

ignore this, commented on the wrong post.

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There were 15 students running in a race. How many different arrangements of first, second, and third place are possible?
viktelen [127]

Answer:

The area 2730 possible arrangements of first, second, and third place.

Step-by-step explanation:

The order in which the students finish is important. For example A, B and C is a different finishing order(outcome) than B, A and C. So we use the permutations formula to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

In this question:

3 from a set of 15. So

P_{(15,3)} = \frac{15!}{(15-3)!} = 2730

The area 2730 possible arrangements of first, second, and third place.

7 0
4 years ago
What is an equivalent form of the function f(x) = x^2 +8x+15 that reveals the zeros of the function? A. y= (x-3)^2-5 B. f(x) = (
777dan777 [17]

ANSWER

C. f(x) = (x+3)(x+5)

EXPLANATION

The given function is

f(x) = x^2 +8x+15

The factored form of the function reveals the zeros of the function.

From the factored form, we apply the zero product principle to get the zeros.

From the given options, the factored form of the polynomial is

f(x) = (x+3)(x+5)

8 0
3 years ago
Solve the system of equations using substitution<br> 4x + 2y = 16<br> =−12+5
mario62 [17]

Answer:

x=\frac{70}{11},\:y=\frac{20}{11}

Step-by-step explanation:

\begin{bmatrix}4x+2y=16y\\ y=-\frac{1}{2}x+5\end{bmatrix}

\mathrm{Substitute\:}y=-\frac{1}{2}x+5

\begin{bmatrix}4x+2\left(-\frac{1}{2}x+5\right)=16\left(-\frac{1}{2}x+5\right)\end{bmatrix}

Simplify

\begin{bmatrix}3x+10=16\left(-\frac{1}{2}x+5\right)\end{bmatrix}

Isolate x for 3x+10=16(-1/2x+5): x=\frac{70}{11}

\mathrm{For\:}y=-\frac{1}{2}x+5

\mathrm{Substitute\:}x=\frac{70}{11}

y=-\frac{1}{2}\cdot \frac{70}{11}+5

-\frac{1}{2}*\frac{70}{11}+5=\frac{20}{11}

y=\frac{20}{11}

\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}

x=\frac{70}{11},\:y=\frac{20}{11}

3 0
3 years ago
Megan and four of her friends plan to go for a long drive. She buys 12 bottles of frappe and a few bottles of orange juice from
natima [27]

Answer:

  4 bottles

Step-by-step explanation:

Let o represent the number orange juice bottles Megan bought. Then the total number of juice bottles is ...

  o + 12 = 4o

  12 = 3o . . . . . . . subtract o

  12/3 = o = 4 . . . . divide by the coefficient of o

Megan bought 4 bottles of orange juice.

5 0
3 years ago
Three friends go grocery shopping........... answer the question
DanielleElmas [232]

Answer:

B

Step-by-step explanation:

unit price is $3.50.

The graph should have the coordinate (1,3.5)

8 0
3 years ago
Read 2 more answers
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