1st digit can be 0-9 = 10 numbers
2nd digit can be 10-1 numbers = 9 numbers
3rd digit can be 10-2 = 8 numbers
10 x 9 x 8 = 720 codes are possible
Answer:
The hypotenuse is 14.2cm long.
Step-by-step explanation:
Use the Pythagorean Theorem here:
Step-by-step explanation:
The formula for the slope is <em>y=mx+b</em>, where <em>m</em> is the slope and <em>b</em> is the y-intercept. Since 2 is being multiplied by <em>x</em>, that means it is the slope. The variable <em>y</em> is being added, so it has to be the y-intercept.
Answer:
2=slope & y-intercept=y
Answer:
3/8
Step-by-step explanation:
There are 72 students. 27 students choose football, and 18 choose tennis, which means 27 choose running.
So the probability that a student chooses running is 27/72, which reduces to 3/8.
Answer:
Step-by-step explanation:
Let's start by finding Sandra's salary this year.
We are given that she saved $3,360 or 8% of her total salary this year.
Let's represent her total salary this year as "x" and set up an equation:
Note that any percentage is equivalent to that number over 100.
Multiply 100 to both sides:
Divide both sides by 8
The question states "this year her salary was $2000 more than in the previous year".
This means that her salary in the previous year is equivalent to: