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IrinaK [193]
3 years ago
9

Plz help pe with this guys, thank you.

Mathematics
1 answer:
Burka [1]3 years ago
7 0
31.+ addition
32. - subtraction
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D. a set of cards has 25 cards with stars, 15 cards with squares, and 10 cards with circles. find the probability of each event
Dvinal [7]

Answer:

look below

Step-by-step explanation:

The probability of each of the cards can be found by dividing each of them by the sum of all the numbers:

P of picking card with star:

25/50=0.5

Card with square:

15/50=3/10=0.3

Card with circle: 10/50=1/5=0.2

We can then put these values into parts a,b,c, and d:

a) 3/10 chance or 30%

b) 1/5 chance or 20%

c) 1/2+1/5=7/10 chance or 70%

d) 1-0.3-0.2=1/2 chance or 50%

8 0
2 years ago
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Help trying to help my daughter and I have no idea where to start
marysya [2.9K]

Answer:

1/3

Step-by-step explanation:

5 * 3 =  15

6 0
3 years ago
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Find the slop that gos through (-8,9) and (-8,-7)​
BaLLatris [955]
The slope is 16/0 which means it is undefined
3 0
3 years ago
How many oz of walnuts which cost $6/oz must be added to 2 oz of peanuts which cost $12/oz to make mixed nuts which cost $8/oz
Burka [1]

Answer:  4 oz

<u>Step-by-step explanation:</u>

Create a table.  Multiply across and add down (the middle column cannot be added).  The Mixture line creates the equation that must be solved.

Let x represent the unknown quantity of walnuts.

\begin{array}{c|c|c||c}&\underline{Quantity}&\underline{Cost}&\underline{Qty \times Cost}\\Walnuts&x&6&6x\\\underline{Peanuts}&\underline{\qquad 2\qquad}&\underline{\qquad 12\qquad}&\underline{\qquad 24\qquad }\\Mixture&x+2&8&6x+24\end{array}

.\qquad \qquad \qquad \qquad (x+2)(8) = 6x+24\\.\qquad \qquad \qquad \qquad 8x + 16 = 6x + 24\longrightarrow \text{distributed}\\.\qquad \qquad \qquad \qquad2x+16=24\qquad \longrightarrow \text{subtracted 6x}\\.\qquad \qquad \qquad \qquad 2x=8\qquad \qquad \ \longrightarrow \text{subtracted 16}\\.\qquad \qquad \qquad \qquad x=4\qquad \qquad \quad \longrightarrow \text{divided by 2}

4 0
3 years ago
Which value of m makes the statement true? 92-2m ≤7+3m<br><br> A) 12<br> B) 17<br> C) 7<br> D) 9
Mama L [17]

The answer is 17 or B

5 0
3 years ago
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