Answer: 90%
Step-by-step explanation: To write a fraction as a percent, first remember that a percent is a ratio of a number to 100.
So to write 9/10 as a percent, we need to find a fraction
equivalent to 9/10 that has a 100 in the denominator.
We can do this by setting up a proportion.
So we have 
.
Now, we can use cross-products to find the missing value.
So we have (9)(100) which is 900 <em>is equal</em> to (10)(n) or 10n.
So we have 900 = 10n.
Next, dividing both sides of the equation by 10, we have <em>90 = n</em>.
So, 9/10 is equal to 90/100 or 90%.
Answer:
0.75m/s
Step-by-step explanation:
speed = d/t
Answer:
a) 4.5 inches
b) 2√5 is irrational
Step-by-step explanation:
It was given that the edge length of a cube-shaped box is 2√5 inches long.
To estimate the length of the edge to the nearest tenth of an inch, we change √5 to decimals to obtain:
When we round to the nearest tenth, we obtain 4.5
We cannot find its exact value because √5 is an irrational number.
The product of a rational and an irrational number is irrational.
Answer:
Cubic polynomial.
Step-by-step explanation:
Polynomials with their highest degree 3, are called cubic polynomials.
