MATHEMATICS MIDDLE SCHOOL

The sum of two numbers is 92. their difference is 20. find the 2 numbers

Answers

Answer 1

Answer:

The two numbers in question obtained by creating a system of equations are 56 and 36

Let the two numbers be : a and b

a + b = 92 ___(1)
a - b = 20.___(2)

From (2):

a = 20 + b. ____(3)

Substitute (3) into (1)

a + b = 92

20 + b + b = 92

20 + 2b = 92

2b = 92 - 20

2b = 72

b = 72/2

b = 36

From (3) :

a = 20 + 36

a = 56

Therefore, the two numbers are 56 and 36

Learn more : brainly.com/question/18109354

Answer 2

Answer: x+y =92
x -y =20
------------ (subtract the y)
2x= 112
/2 /2
x=56
56+y=92 (substitute x with 56)
-56 -56
y=36

x = 56 and y = 36

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Mr. Lance keeps a jar of candy on his desk for students to pick from when they do well on a test. The jar contains 5 Snickers, 2 Butterfingers, 4 Almond Joys and 3 Milky Ways. If two students get to pick candy from the jar, what is the probability that the first student picks a Snickers and then the second student also picks a Snickers?

Answers

Answer: $(10)/(91)$

Step-by-step explanation:

Given : The jar contains 5 Snickers, 2 Butterfingers, 4 Almond Joys and 3 Milky Ways.

Total candies in the jar = $5+2+4+3=14$

Provability that firsts student select snickers = $(5)/(14)$

Now total candies in jar = 14-1=13

Total snickers remained =5-1=4

Probability that the second student also select snickers= $(4)/(13)$

Then, the probability that the first student picks a Snickers and then the second student also picks a Snickers :-

$(5)/(14)*(4)/(13)=(20)/(182)=(10)/(91)$

Hence, the required probability = $(10)/(91)$

3/14 for the first kid and 2/13 for the 2nd kid

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Answers

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30/100=0.3
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You mix the letters S, E, M, I, T, R, O, P, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability P(I) as a fraction, a decimal, and a percent.

Answers

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Answers

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