What are some Ratios equivalent to 3:12

Mathematics

2 answers:

pashok25 [27]2 years ago

6 0

Answer:

1:4, 2:8, or 4:16 are some

Liula [17]2 years ago

4 0

Answer:

6:24

1:4

2:8

Step-by-step explanation:

Simplified all the way is 1:4 so just make sure that you multiply the same number by both the numerator and the denominator

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300 would be the answer

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3 years ago

What is the answer to -4*b = 24<br> * means multiply

iris [78.8K]

Answer:

$b = - 6$

Step-by-step explanation:

$-4 \times b = 24 \\ - 4b = 24 \\ \\ b = \frac{24}{( - 4)} \\ \\ b = - 6$

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3 years ago

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how many ways can 8 members of a family be seated side-by side in a movie theater if the father is seated on the aisle?

LUCKY_DIMON [66]

Ok so there are 7 different options for each of the remaining 7 people to be sat in which means that the answer can be given by 7!=7*6*5*4*3*2*1=5040 different ways

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2 years ago

Use addition or substitution to find the value of y for this set of equations. 4x + 13y = 40 4x + 3y = -40

Aliun [14]

4x + 13y = 40
4x + 3y = -40

multiply second equation by -1

4x + 13y = 40
-4x - 3y = 40

add equations together

10y = 80
y = 8

put y in either original equation

4x + 3(8) = -40
4x + 24 = -40

subtract 24 from both sides

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5 0

2 years ago

Point A is located at (5, 10) and point B is located at (20, 25).

Alla [95]

Let's say the point is C, so C partitions AB into two pieces, where AC is at a ratio of 3 and CB is at a ratio of 7, thus 3:7,

$\bf \left. \qquad \right.\textit{internal division of a line segment}
\\\\\\
A(5,10)\qquad B(20,25)\qquad
\qquad 3:7
\\\\\\
\cfrac{AC}{CB} = \cfrac{3}{7}\implies \cfrac{A}{B} = \cfrac{3}{7}\implies 7A=3B\implies 7(5,10)=3(20,25)\\\\
-------------------------------\\\\
{ C=\left(\cfrac{\textit{sum of "x" values}}{\textit{sum of ratios}}\quad ,\quad \cfrac{\textit{sum of "y" values}}{\textit{sum of ratios}}\right)}\\\
-------------------------------$

$\bf C=\left(\cfrac{(7\cdot 5)+(3\cdot 20)}{3+7}\quad ,\quad \cfrac{(7\cdot 10)+(3\cdot 25)}{3+7}\right)
\\\\\\
C=\left( \cfrac{35+60}{10}~~,~~\cfrac{70+75}{10} \right)\implies C=\left(\cfrac{95}{10}~~,~~\cfrac{145}{10} \right)
\\\\\\
C=\left( \cfrac{19}{2}~~,~~\cfrac{29}{2} \right)\implies C=\left( 9\frac{1}{2}~~,~~14\frac{1}{2} \right)$

8 0

2 years ago