Answer:
u need to make it into a circle my dude
Step-by-step explanation:
D.) $438.81
It got this because you just have to multiply $2,507.47 by 0.175 to get $438.81...
Answer:
a₁ = 10
Step-by-step explanation:
The common difference d is calculated as
d = a₃ - a₂ = - 20 - (- 5) = - 20 + 5 = - 15
Then
a₂ - a₁ = d , that is
- 5 - a₁ = - 15 ( add 5 to both sides )
- a₁ = - 10 ( multiply both sides by - 1 )
a₁ = 10
She needs to score at least a 97 to get a score of at least 90.
Mean = 83 + 88 + 92 + 97 = 360
360/4 = 90
You could have found this answer without using trial and error.
If she wants to get a mean of 90 and she will have 4 scores, you can multiply these together.
This equals 360.
Now you need to find the minimum score she needs to get. Take 360 and subtract what the original 3 numbers equal, 263.
This gives you 97.
I hope that makes sense :)
Answer:
75
Step-by-step explanation:
If it is 20% less, that means 60 is 80% of whatever the number is we are trying to find. Therefore, multiply 60 by 100/80.
60 x 100/80 = 75