Write and solve a proportion to answer the question.<br> What number a is 0.4% of 40?

EVALUATE !!!! ILL GIVE YOU BRAINLIST HAVE TO GET IT RIGHT !!!!

elena-s [515]

Answer:

Step-by-step explanation:

$nxy\div m\\\\n =3/4\\x =8\\y =6\\m=3\\\\\frac{3}{4} \times 8 \times 6 \div 3\\\\\mathrm{Divide\:the\:numbers:}\:6\div \:3=2\\=\frac{3}{4}\times \:8\times \:2\\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:8=\frac{8}{1}\\=2\times \frac{3}{4}\times \frac{8}{1}\\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:2=\frac{2}{1}\\=\frac{3}{4}\times \frac{8}{1}\times \frac{2}{1}\\\\Multiply\:fractions\\=\frac{3\times \:8\times \:2}{4\times \:1\times \:1}\\\\=\frac{48}{4}\\\\Simplify\\=12$

8 0

3 years ago

Solve 3(x+3) >4(x-4)

frutty [35]

3 X + 9 is greater than 4 x minus 16

+ 25 is greater than x

6 0

3 years ago

Suppose that a certain college class contains students. Of these, are juniors, are mathematics majors, and are neither. A studen

ipn [44]

Answer:

Step-by-step explanation:

The question is not correctly outlined, here is the correct question

<em>"Suppose that a certain college class contains 35 students. of these, 17 are juniors, 20 are mathematics majors, and 12 are neither. a student is selected at random from the class. (a) what is the probability that the student is both a junior and a mathematics majors?"</em>

Given data

Total students in class= 35 students

Suppose M is the set of juniors and N is the set of mathematics majors. There are 35 students in all, but 12 of them don't belong to either set, so

|M ∪ N|= 35-12= 23

|M∩N|= |M|+N- |MUN|= 17+20-23

=37-23=14

So the probability that a random student is both a junior and social science major is

=P(M∩N)= 14/35

=2/5

7 0

2 years ago

Determine if the statement is always, sometimes or never true.