Step-by-step explanation:
-12 = 5x
5x = -12
x = -12/5
x = -2.4
Answer:
I believe 225 hamburgers were sold on Monday.
Step-by-step explanation:
Which expression can be used to find the quotient of 15 and 1/3?
Solution
The quotient of "P" and "Q" is P/Q.
Therefore, the quotient expression of 15 and 1/3 is 
We can rewrite 
Note: If we have fraction in the divisor, we can flip the fraction and multiply with the dividend.
Answer:
a = 7
Step-by-step explanation:
I think, what you need to do, is first understand how to find the mean of anything: It's quite simple, actually, just add up all the numbers, then divide that number by the number of numbers. So, let's put it in perspective:
10, 3, 4, a, 6, 9, 10
7 is the mean. 7 is the number of numbers.
If, to find the mean is: 10 + 3 + 4 + a + 6 + 9 + 10= 7a ÷ 7, then: 10 +3 + 4+ 6 + 9 +10= 42
42 plus what divided by 7 is the question now.
42 + a ÷ 7= 7
So, 7 times 7, that's 49 minus 42 and you've got your answer: 7
