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3 years ago

The ratio of girls to boys at a movie is 3:8. If there are 32 boys, how many girls are at the movie

Mathematics

2 answers:

Len [333]3 years ago

6 0

Answer:

Step-by-step explanation:

8*4=32

So they simplified the ratio by dividing by 4, and we can multiply 3*4 to get the finishing number:

The final ratio would be 12:32

BigorU [14]3 years ago

6 0

Answer:

twelve

Step-by-step explanation:

if the ratio of girls to boys is 3:8, the you have to multiply eight by four. Then, you multiply three by four because you need to keep it equal.

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EASY 20 POINTS GUYS

Bumek [7]

note: 5≠20

also, if you multiply both sides of an inequality by a negative number, you flip te direction of the inequality sign

example: 3<5, multiply by -1, -3>-5

so given

-2<3

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4th option is answer

7 0

3 years ago

Read 2 more answers

"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"

erastovalidia [21]

Answer:

The exam can be answered with exactly 8 answers correct in 6435 ways.

Step-by-step explanation:

The order is not important.

For example, answering correctly the questions 1,2,3,4,5,6,7,8 is the same outcome as answering 2,1,3,4,5,6,7,8. So we use the combinations formula to solve this problem.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"

Combinations of 8 questions from a set of 15. So

$C_{15,8} = \frac{15!}{8!(15-8)!} = 6435$

The exam can be answered with exactly 8 answers correct in 6435 ways.

5 0

2 years ago

125 + .375=?<br><br><br> 0.654 + 0.389 - 0.293=?

Lana71 [14]

If it's 125 + 0.375 then the answer is 125.375

and for the second it's 0.75

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2 years ago

Read 2 more answers

Find YQ if MQ = 3x-3 and YQ = 2x-6.

Alina [70]

Answer:

• Assume Q is a mid point of line MY

${ \underline{ \sf{ \: _{l} M \: \: \: \: \: \: \: \: _{l} Q \: \: \: \: \: \: \: \: _{l}Y}}}$

• Then, MQ = YQ

${ \rm{(3x - 3) = (2x - 6)}} \\ \\ { \rm{3x - 2x = - 6 + 3}} \\ \\ { \boxed{ \rm{ \: x = - 3 \: }}}$

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2 years ago

Find the equation of a line parallel to y=2x+1 that contains points (14, 3)

Norma-Jean [14]

The equation is y=2x-25

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3 years ago