3 years ago

Hep please I need it fast too

Mathematics

1 answer:

kozerog [31]3 years ago

4 0

The value of the expression decreases

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In class 9A the ratio of boys to girls is 3:4. if there are 12 boys,how many girls are there?

Mamont248 [21]

16 girls. 12 divided by 4 is 3, so this means that you have to take 4 and multiply it by 4 which equals to 16.

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2 years ago

What is the scale factor from small triangle to the larger triangle

Lyrx [107]

Answer:

scale factor = 3

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, larger to smaller.

scale factor = $\frac{BC}{TB}$ = $\frac{12}{4}$ = 3

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2 years ago

Section 1

icang [17]

Answer:

$P(Red) = \frac{7}{25}$

Step-by-step explanation:

Given

$Red = 35$

$Blue = 40$

$Green = 50$

Required

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$P(Red) = \frac{n(Red)}{Total}$

Substitute value for n(Red) and calculate Total

$P(Red) = \frac{35}{35 + 40 + 50}$

$P(Red) = \frac{35}{125}$

Divide numerator and denominator by 5

$P(Red) = \frac{7}{25}$

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3 years ago

An oil company fills 1/12 of a tank in 1/3 hour. At this rate, which expression can be used to determine how long will it take f

monitta

Selection B is appropriate.

_____
It takes 12 times as long to fill the whole tank as it does to fill 1/12 of the tank.
.. 12 * (1/3 hour) = (1/3)*12 hour

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liraira [26]

LolAnswer:

Step-by-step explanation:

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