All categories

3 years ago

The sum of two numbers is 12. The first number,x, is twice the second number ,y,

1 answer:

3 0

Judging by the question at hand I generated this equation.
x+y=12
x=2y

I begin this question by plugging in the x=2y into the equation for x.
So the new equation should be 3y=12. I then divide the entire equation by 3 to get y=4.

Next I plug y=4 into the equation, the new equation should be x+4=12. I then subtract 4 from both sides to get x=8.

The two numbers are :
x=8 y=4

You might be interested in

TREET ROLE . -s - 5(3s – 8) simplest term

Alona [7]

I just met a friend for the first year old man who

4 0

3 years ago

A bowl of fruit is on the table. It contains 5 apples, 2 oranges, and 2 bananas. Christian and Aaron come home from school and r

Sholpan [36]

The probability that both grab oranges would be = $\frac{1}{36}$

Step-by-step explanation:

Given,

A bowl contains,

Apples = a = 5

Oranges = o = 2

bananas = b = 2

Total fruits in bowl = x = a + o + b = 5 + 2 + 2 = 9

Now, Christian and Aaron come home from school and randomly grab one fruit each.

The probability of first selecting orange would be = $\frac{o}{b} = \frac{2}{9}$

Now, the oranges left would be 2 - 1 = 1

and total fruits would be = 9 - 1 = 8

Hence, the probability of selecting second orange would be = $\frac{1}{8}$

Therefore, the probability that both grab oranges would be = $\frac{1}{8} * \frac{2}{9} = \frac{1}{36}$

7 0

3 years ago

In a class. 40% of the student's study math and science, 60% of the students study

GaryK [48]

Answer:

2/3

Step-by-step explanation:

A = Student studying Math

B = Student studying Science

P(B|A) = P(A and B) ÷ P(A).

P(B|A) means the probability of event B given event A.

Given :

P(A and B) = 0.40.

Also P(A) = 0.60.

P(B|A) = 0.40 ÷ 0.60 = 2 ÷ 3.

So, the answer is 2/3.

8 0

2 years ago

Admission to a theme park is $12. Students receive a 10% discount. What is the amount of the discount? How much would a student

KATRIN_1 [288]

The answer is C

10% = 0.10

12 x 0.10 = 1.20
12 - 1.20 = 10.80

3 0

3 years ago

Tia owns a fruit shop and is selling a fresh lot of apples and oranges. She wants the ratio of apples to oranges sold to be 4 to

Troyanec [42]

Answer:

40 to 20

Step-by-step explanation:

If you have more work on ratios I'd go to this site https://goodcalculators.com/ratio-calculator/

3 0

3 years ago