Answer:
The first option is the answer (k = +/- 2 square root of J)
Step-by-step explanation:
Since you need to leave k by itself, You multiply both sides by 4 which will leave you with 4J=k^2. To get rid of the square(^2), you need to square root both sides which will leave k by it self. So now you have 4J inside the square root = k. The last step is to take the square root of 4 (which is + or -2) and put it outside the square root sign, leaving J inside the square root.
4/9s of the mall per hour. 1/9 + 1/9 + 1/9 + 1/9
Answer:
powers like 10^2
Step-by-step explanation:
its easy
Answer:
The answer is $9
Step-by-step explanation:
$60 x .15
Answer:
8
Step-by-step explanation:
Given:
Total money Jervane can spend = $20.
Cost of a coffee = $3.
Cost of a donut = $2.
To find: Maximum number of donuts Jervane can buy.
Solution:
Let the number of donuts she can buy be
.
She wants to spend no more than $20 in total.
So,





As the number of donuts can only be a natural number.
Hence, the maximum number of donuts that Jervane can buy are 8.