a - b ≤ 25
b - yes
c - 26 ( draw the picture for your explanation)
Answer:
P = 0.09r²
Step-by-step explanation:
Price, p is proportional to the square of its radius, r
P = k*r²
a mirror with radius 20cm has a price of £36
P = k * r²
36 = k * 20²
36 = k * 400
36 = 400k
k = 36/400
k = 0.09
Substitute the value of k into the equation:
P = k * r²
P = 0.09 * r²
P = 0.09r²
Answer:
30
Step-by-step explanation:
80 + 40 = 120
120 represents the total students for all 4 classes. And since there is an even amount in each class...
120 / 4 = 30
So 30 would be your answer.
99 ÷ 3 = 33 so each box weighs 33lbs or pounds each
so 33 × 4 = 132 pounds
or
99 + 33 = 132 pounds
Answer:
C. The charge of each minute of a call is $0.40
Step-by-step explanation:
We look at the point (1, 0.4)
We know that our x = 1 is 1 minute of the call.
We know that y = 0.4 is the cost when 1 minute of the call has elapsed.
Therefore, our answer is C.
