y = 20 + 2.5x
have to write more or I cant post this
Answer: 3
Explanation:
She wants to get 70%, so we need to solve
x/20 = 70/100
Doing so gets us
100x = 20*70
100x = 1400
x = 1400/100
x = 14
She needs to have 14 questions correct, out of 20, to get a score of 70%
14/20 = 0.70 = 70%
She needs to get 14-11 = 3 more correct questions.
Answer:
Step-by-step explanation:
Given
Opposite points: 
and 
Required
Find k
First, calculate the midpoint of the opposite points.
This gives:
Open bracket
The equation becomes:
Solve for k
Where P = perimeter, L = length, W = width, and A = area:
A = LW
P = 2(LW)
Hope this helped! :)
Answer:
w = 33
Step-by-step explanation:
w ÷ 3.3 = 10
multiply both sides by 3.3:
w ÷ 3.3 x 3.3 = 10 x 3.3
⇒ w = 33
