Step-by-step explanation:
Let number be X
Therefore 2.5 of X = 0.75
X = 0.75/2.5
= 0.3
870/2 = 435
130/435 = 26/87 = 0.5977 cm
Answer:
We can expect 28 defected cars.
Step-by-step explanation:
Let us assume that the defected cars are "uniformly distributed" in the total set of cars.
Then we can write the proportion 8%2F360 = x%2F1260 for the unknown amount x of defected cars among 1260 cars.
Solving the proportion for x you get
x = 8%2A1260%2F360 = 8%2A3.5 = 28.
Answer:
he will increase his account balance by $20 a year
Step-by-step explanation:
Answer:
1 inch
Step-by-step explanation:
The formula for the volume of a cylinder:
V = πr²h, where r=radius and h = height
Using 7.1 for 'V' and 1.5 for 'r' (1/2 of the diameter), we can fill in the values and solve for 'h':
7.1 = π(1.5)²h or 7.1 = 7.065h
h = 1 inch
