Rachel got 18 out of 30 correct on her science test. What percent did she get on her test?

Mathematics

1 answer:

oksano4ka [1.4K]3 years ago

5 0

Answer:

60% or D

Step-by-step explanation:

Divide 100 by 30

3.333333. . .

Multiply 18 by 3.333333. . .

The answer is 60%

Hope this helped :)

You might be interested in

What is the inverse one to one function of f(x) = square root of x-2???

alexira [117]

$f(x) = \sqrt{x - 2} \\y = \sqrt{x - 2} \\y^{2} = (\sqrt{x - 2})^{2} \\y^{2} = x - 2 \\x^{2} = y - 2 \\x^{2} + 2 = y \\x^{2} + 2 = f^{-1}(x)$

6 0

3 years ago

Prove if the sum of the digits of a 3 digit number n is divisible by 9, then n is divisible by 9.

beks73 [17]

$n=100x+10y+z\\x+y+z=9k,k\in\mathbb{Z}\\\\n=99x+9y+x+y+z\\n=99x+9y+9k\\n=9(11x+y+k)$

6 0

3 years ago

At the beginning of an experiment, the number of bacteria in a colony was counted at time t=O. The number of bacteria in the col

yan [13]

Answer:

1092

Step-by-step explanation:

We have been given that the number of bacteria in the colony t minutes after the initial count modeled by the function $B(t)=9(3)^t$ . We are asked to find the average rate of change in the number of bacteria over the first 6 minutes of the experiment.