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3 years ago

The ratio of boys to girls in Ms. Jefferson's class is 3 to 4. There are 16 girls in the

Mathematics

1 answer:

IRISSAK [1]3 years ago

4 0

Answer: 28

Step-by-step explanation:

there are 3 boys for every 4 girls, so 4 times 4 is equal to 16. Now just multiply 3 times 4. 16 + 12 = 28.

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What is n/7 = 3/22 ?

gayaneshka [121]

Answer:

The answer is 21/22

Step-by-step explanation:

n/7=3/22

then you cross-multiply

we have 22n=21

divide both sides by 22 to make n the subject of formula

n=21/22

6 0

3 years ago

Given the function f(x) = -5|x + 1| + 3, for what values of x is f(x) = -12? O X= -2. x = 1 O x= -2 x = 4 O x = 2. x = 4 O x = 2

puteri [66]

The values are x= -2 and x =4 of the given function f (x) =-5|x+1| +3

<h3>What is function?</h3>

Function is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

According to the question,

The given function is

$f(x) = -5|x + 1| + 3$

Here f(x) = -12

Substitute f(x) and solve for x

$- 12 = -5|x + 1| + 3$

By subtracting 3 on both sides

$- 12 - 3 = -5|x + 1| + 3 - 3$

$- 15 = -5|x + 1|$

By dividing -5 on both sides

$3 = |x + 1|$

We get absolute values for the function.

$x + 1 = 3 , x + 1 = -3$

By subtracting 1 on both sides

$x + 1 - 1 = 3 - 1 = 2\\\\x + 1 - 1 = - 3 - 1 = -4\\\\x = 2 , x = - 4$

Therefore, the values of x are 2 and - 4 of the given function f (x) =-5|x+1| +3

Learn more about function here: brainly.com/question/12431044

#SPJ1

4 0

2 years ago

4<br> Find the perimeter of a<br> Square with a side<br> length of 7 meters.

11Alexandr11 [23.1K]

Answer: P=28 meters

Step-by-step explanation:

$P=4$ × a ⇒ a is the side length

$P=4$ × $7$

$P=28$

5 0

2 years ago

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A student estimates that it would take her 3 hours to write a book report,but it actually takes he 5 hours what is the percent e

aleksklad [387]

Answer:

66.67%

If it wrong! IM SO SORRY:(

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2 years ago

What is the common ratio for this geometric sequence 3,12,48,192

NARA [144]

Answer: The common ratio is 4.

Step-by-step explanation:

Each term is four times the last term. The common ratio of a geometric sequence is the number that is being multiplied by each time to get the next term, which is four in this case.

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3 years ago