Answer:
x = 40 when y = 10
Step-by-step explanation:
The reason that answer is true is because every time 'y' goes up by 1 'x' goes up by 4. So when 'y' = 10 that means x has to go up 10 times just like 'y' did.
So let's add variables according to the ratio:
3n + 2n = <span>£80
5n = </span><span>£80
n = 16
3(16):2(16)
48:32
Tom gets </span>£48, and Jerry gets <span>£32</span>
The sum of the 3 angles in a triangle is 180 , from the name you can know that it will have 3 equal angles which will be 60 degrees each as 180÷3=60
Answer:
Image result for Two people were standing on a tight rope. Which number sentence represents the distance between the 2 people? •= + HH + "-3" "-2" "-1" 0 1 2 3 4 "-4"
Examples of number sentences include: 32 + 57 = ? 5 x 6 = 10 x ? They will usually comprise of addition, subtraction, multiplication or division – or a combination of all four!
Step-by-step explanation: hope this helps
Complete question :
A test consists of 10 multiple choice questions. Each question has 5 choices. To pass the test, a student must answer at least 6 questions correctly. If a student guesses on each question, the probability of getting it right is 20%. What is the probability that the student will pass the test?
Answer:
0.006370
Step-by-step explanation:
Number of options = 5, with only one correct,hence, p = 1/5 = 0.2
Number of questions = 10
Number of correct answers required to pass = 6
Using binomial distribution formula :
P(x =x) = nCx * p^x * (1 - p)^(n - x)
p = 0.2 ; 1 - 0.2 = 0.8
n = 10 ; x = 6
P(x ≥ 6) = p(6) + p(7) + p(8) + p(9) + p(10)
The formula above can be used to obtain the individual probabilities then taking the sum or we can obtain the solution using a calculator ;
Using a binomial probability distribution calculator with the parameters given :
P(x ≥ 6) = 0.0063693824
= 0.006370 ( 4 decimal places)
