Answer:
Step-by-step explanation:
GIVEN: A car was sold standard washed in a day , which was
of their total sales for that day.
TO FIND: Total amount of washes that the car wash sold that day.
SOLUTION:
Let the total sales of car washes sold for that day
total number of standard car washes sold
As, total standard car washes sold are of total sales in a day
putting value in equation
Hence the total number of car washes sold that day are
There are 21 ways Tim choose 2 books from the 7 recommended book
<em><u>Solution:</u></em>
Given that Tim must read 2 books from a list of 7 recommended books for his summer reading program
To find: different ways can Tim choose 2 books from the 7 recommended books
This is a combination problem
A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected
<em><u>The formula for combinations is:</u></em>
where n represents the number of items, and r represents the number of items being chosen at a time
Here we have to choose 2 books from 7 books
Therefore, n = 7 and r = 2
<em><u>Substituting values in above formula, we get</u></em>
For a number n, the factorial of n can be written as,
Therefore, we get
Thus there are 21 ways Tim choose 2 books from the 7 recommended book
Answer:
Step-by-step explanation:
Hello!
A line that is perpendicular to another has an opposite-reciprocal slope.
Meaning:
The slope perpendicular to 3/5 would be -5/3.
We can solve for the y-intercept by plugging in the x and y values given from the coordinate into the equation with out new slope.
<h3 /><h3>Solve for B</h3>The y-intercept of the new line is 20.
The equation is