When you add a positive and a negative like you did here it basically is the same as subtracting 5 from 3
Answer:
x
^2
−
x
−
1
−(
2
/x
−
1)
Step-by-step explanation:
10x-5x=1000
x=200
she must sell 200 necklaces
hope this helps
Answer:
Mean = 29
Step-by-step explanation:
Given that,
The numbers of cupcakes she sold are 23, 25, 32, 35, 36, 25, and 27.
We need to find the mean of the cupcakes for a week.
We know that,
Mean = (sum of observations)/(no. of observations)

So, the mean of cupcakes is 29.