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Vikki [24]
4 years ago
8

Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. The store manager assures you that 13

of the 62 boxes on the shelf have the secret decoder ring. The other 49 boxes on the shelf have a different gift inside. If you randomly select two boxes of cereal from the shelf to purchase, what is the probability that BOTH of them have the secret decoder ring?
Mathematics
2 answers:
Brums [2.3K]4 years ago
8 0

Answer:

0.041 = 4.1%

Step-by-step explanation:

The probability the first box has a secret decoder ring is 13/62.

The probability the second box has a secret decoder ring is 12/61.

The probability of both is:

P = (13/62) (12/61)

P ≈ 0.041

gizmo_the_mogwai [7]4 years ago
6 0

Answer:

I'm pretty sure it is 7.4% or 0.074.

Step-by-step explanation:

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Solve using the quadratic formula. Approximate answers to the nearest tenth.
-BARSIC- [3]

Answer:

\displaystyle x=-1, \ 8

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Standard Form: ax² + bx + c = 0
  • Quadratic Formula: \displaystyle x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

x² - 7x - 8

↓

<em>a</em> = 1, <em>b </em>= -7, <em>c</em> = -8

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in variables [Quadratic Formula]:                                                  \displaystyle x=\frac{7 \pm \sqrt{(-7)^2-4(1)(-8)}}{2(1)}
  2. [√Radical] Evaluate exponents:                                                                       \displaystyle x=\frac{7 \pm \sqrt{49-4(1)(-8)}}{2(1)}
  3. [√Radical] Multiply:                                                                                           \displaystyle x=\frac{7 \pm \sqrt{49 + 32}}{2(1)}
  4. [√Radical] Add:                                                                                                 \displaystyle x=\frac{7 \pm \sqrt{81}}{2(1)}
  5. [√Radical] Evaluate:                                                                                         \displaystyle x=\frac{7 \pm 9}{2(1)}
  6. Multiply:                                                                                                             \displaystyle x=\frac{7 \pm 9}{2}
  7. Add/Subtract:                                                                                                    \displaystyle x=\frac{-2}{2}, \ \frac{16}{2}
  8. Divide:                                                                                                               \displaystyle x=-1, \ 8
5 0
3 years ago
How many times does 47 go into 296
allochka39001 [22]

Answer:

6 times

Step-by-step explanation:

296÷47= 6.29

goes in 6 times

5 0
4 years ago
Read 2 more answers
HELP!!!! asap
Pavlova-9 [17]

Answer:

A series of translations to map at least two angles of the image to two angles of the pre-image.

Step-by-step explanation:

we have 2 figures: △ABC and △A′B′C′

△A′B′C′ is the dialation of △ABC

we have to prove that the figures are similar using AA similarity

AA = (Angle-Angle)

Option D is correct.

5 0
4 years ago
Read 2 more answers
A student uses 3.14 for π to calculate the approximate circumference of a circle, 150.72 meters. Given this, find the approximat
Alisiya [41]

Answer:

area of a circle = 1808.64meters²

Step-by-step explanation:

given that ,

π = 3.14

circumference = 150.72meters

calculate the area of the circle.

to calculate the circumference of a circle

recall,

circumference of a circle = 2πr

circumference of a circle = 2 x 3.14 x r

circumference of a circle =  6.28r

150.72meteras = 6.28r

divide both sides by 6.26

150.72meters/6.28 = 6.28r/6.28

24meters = radius

radius = 24 meters

now to calculate the area of the circle

recall the formulae for finding the area of a circle is given to be = πr²

area of a circle = πr²

area of a circle = 3.14 x ( 24)²

area of a circle = 3.14 x 576meters²

area of a circle = 1808.64meters²

8 0
3 years ago
Divide 60kg in the ratio 5:7
snow_lady [41]

Step-by-step explanation:

Hey there!!

Given, The ratio is: 5:7

Let x be a common factor.

Now,

5x+7x = 60

12x = 60

x =  \frac{60}{12}

Therefore, x= 5.

5x = 5×5 = 25.

7x= 7×5=35.

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

8 0
3 years ago
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