Ben is old now in terms of P .
A linear equation in two variables is of the form Ax + By + C = 0, in which A and B are the coefficients, C is a constant term, and x and y are the two variables, each with a degree of 1. For example, 7x + 9y + 4 = 0 is a linear equation in two variables. If we consider two such linear equations, they are called simultaneous linear equations.
According to the question
Six years ago Anita was P times as old as Ben was.
Let Ben's age now be B.
Anita's age now is A.
Writing linear equation in two variables
(A-6) = P(B-6)
But A is 17 and therefore
17 - 6 = P(B - 6)
11 = P(B - 6)
= (B-6)
Hence,
Ben is old now in terms of P .
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B. what is the probability a randomly selected score is less than 32.8?
C. What is the probability a randomly selected score is Between 25.6 and 32.8?
Answer:
a. 0.1587
b. 0.8849
c. 0.1814
Step-by-step explanation:
a. Given that
-The probability a randomly selected score is greater than 30.4 is calculated as:
Hence, the probability of a score greater than 30.4 is 0.1587
b. Given that
The probability a randomly selected score is less than 32.8 is calculated as:
Hence, the probability that a randomly selected score is less than 32.8 is 0.8849
c. The probability that a score is between 25.6 and 32.8 is calculated as follows:
Hence, the probability is 0.1814
The probability of getting heads is 0.7
Work out the probability of getting tails.
Answer:
Step-by-step explanation:
Real life = 8m = 8000mm
Drawing = 4mm
we can take the ratio of the two values (but be sure that they both have the same units, this is why it is necessary to convert 8m to 8000mm OR you can convert 4mm to its value in meters)
we can also write this as:
so the drawing's scale factor is:
This means that if length of the living room in the drawing is multiplied by 2000 it will be of the same length as the living room in real life.
Answer:
Step-by-step explanation:
Answer:
4√10/5
Step-by-step explanation:
8/√10
=8/√10 ×√10/√10
=8√10/√10√10
=8√10/10
=4√10/5 (ans)
=2.53 (approximately)
Answer:
10/3
Step-by-step explanation:
Keep, change, flip
Keep the first fraction in the equation, change the division symbol to multiplying, and then multiply the first fraction by the reciprocal (opposite) of the second fraction (14/3)
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