"a ∝ b" means "a is proportional to b", which in turn means there is some constant k such that
a = kb
We're given that a = 18 and b = 3, so that
18 = 3k ⇒ k = 6
Then when b = 5, we would have
a = 6 × 5 = 30
Answer:
4% of 175,000 is 7,000
7,000x 5=35,000
175,000-42,000 equals 140,000 the value of the house
Answer:
y = (1/2) cos (x)
Step-by-step explanation:
It has the same period as cos x but only goes half as high and half as low. Normalyy, cos(x) goes up to 1 and down to -1.
Answer:
7
Step-by-step explanation: calculate the prime factors of 7 and 21, than find the greatest common factor
Answer:
115 ÷ 5 = 23
Step-by-step explanation:
Distributive property of division is a ÷ b = c where c is constant
115 ÷ 5
= 23