X + y = 10
2x + 4y = 36
Answers
x + y = 10
2 * x + 4 * y = 36
_______________
x = 10 - y
2 * (10 - y) + 4 * y = 36
2 * 10 - 2 * y + 4 * y = 36
20 + 2 * y = 36
2 * y = 36 - 20
2 * y = 16 /2
y = 16/2
y = 8
x = 10 - y = 10 - 8 = 2
Result: x equals to 2 and y equals to 8.
The first one is X,Y= 5
Number 2 Is x= 10 and y= 4
Related Questions
(-3) to the power of 3 is?
On a map, 3 inches corresponds to 100 miles. Find the actual distance between two cities that are 7 1/2 inches apart on the map.
Write a word problem that you can solve using multiples to estimate the quotient. Include a solution.
(5x+6) over 2 = 3 (4x+12)
Answers
Using the binomial distribution, it is found that there is a 0.0369 = 3.69% probability that 3 or more were involved in an accident last year.
For each driver, there are only two possible outcomes, either they were involved in an accident, or they were not. The probability of a driver being involved in an accident is independent of any other driver, hence, the binomial distribution is used to solve this question.
Binomial probability distribution
The parameters are:
- x is the number of successes.
- n is the number of trials.
- p is the probability of a success on a single trial.
In this problem:
- 7% of all drivers were involved in an accident last year, hence
.
- 11 drivers are selected at random, hence
.
The probability is:
In which:
Then
0.0369 = 3.69% probability that 3 or more were involved in an accident last year.
To learn more about the binomial distribution, you can check brainly.com/question/24863377
Answer:
Therefore the probability that 3 or more were involved in an accident last year is 0.376.
Step-by-step explanation:
Binomial distribution:
A discrete random variable X having the set {0,1,2.....,n} as the spectrum, is said to have binomial distribution with parameter n= the number of trial and p = probability of getting successes in one trial if the p.m.f of X is give by
for x=0,1,2,....,n
=0 elsewhere
where , n is a positive integer and 0<p<1.
Given that,
7% of all drivers were involved in an accident last year that was determined by a car insurance company.
p= 7%=0.07, n=11, x=3
P(X≥3)
= 1-P(X≤2)
= 1- P(X=0)-P(X=1)-P(X=2)
=1-0.624
≈0.376
Therefore the probability that 3 or more were involved in an accident last year is 0.376.
Answers
100x=8640
x=86.4
Answers
Factors of 72 are 1, 2, 3, 4, 6, 8, 9 , 12 , 18, 24, 36, 72 ;
The factors that are common to all two numbers are 1, 2, 3, 6, 18 ;
The largest of the common factors is 18, so the Greatest Common Factor of 18 and 72 is 18 .
3
4
5
6
9
10
Answers
The number 84 is divisible by 2,3,4 and 6.
What is division?
One of the four fundamental arithmetic operations, or how numbers are combined to create new numbers, is division.
The numbers which divide 84 completely are:-
2 ⇒ 84 ÷ 2=24
3 ⇒ 84 ÷ 3=28
4 ⇒ 84 ÷ 4=21
6 ⇒ 84 ÷ 6=13
Hence, the numbers are 2,3,4 and 6.
To know more about division follow
#SPJ2
3↪84:3=28
4↪84:4=21
6↪84:6=13
A.T
B.
There is no relationship between the variables.
C.H
Answers
t = 25h + 75
h ... the number of hours ... independent variable
t ... the total amount billed to the customer ... dependent variable
The correct result would be C. h.
Answers
Answer:
3.5 miles
Step-by-step explanation:
From the question, we have the following information:
The super speedway at Daytona International Speedway is = 2.5 miles
long
The road course there is = 1.4 times as long as the super speedway.
How long is the road course?
The length of the road course is calculated as:
1.4 × length of the super speedway
1.4 × 2.5 miles
=>3.5 miles
Therefore, length of the road course I s 3.5 miles.