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4 years ago

I do not understand this question, what do i do??

Mathematics

2 answers:

DiKsa [7]4 years ago

8 0

Answer:

90 shoppers have cookies or fruits as their favorite snack.

Step-by-step explanation:

First add 15% and 15% to get a total of 30% then multiply 300 by 30 to get 9000 and divide that by 100 to get your answer of 90.

Margarita [4]4 years ago

5 0

Answer:

Step-by-step explanation:

so if there are 300 shoppers and 10% of 300=30

we also know that if you add the % from people who got cookies to the % of people who got fruits you would get 15+15=30

30% of 300 is the same as 10% times 3 so if 10%=30 then that times 3 =90

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Which equation represents a linear function with a slope of 12 and a y-intercept of -15? A. Y=−15x+12 B. Y=−x2+15 C. Y=x2−15 D.

Naddik [55]

Answer:

y = 12x-15

Step-by-step explanation:

The equation of a line is given by :

$y=mx+c$

Where

m is slope and c is y-intecept.

Here, the slope is 12 and y-intercept is -15.

Then the equation is :

y = 12x+(-15)

y = 12x-15

Hence, the required equation for the line is "y=12x-15".

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3 years ago

If f(x)=ax+b/x and f(1)=1 and f(2)=5, what is the value of A and B?

LUCKY_DIMON [66]

Answer:

$\huge\boxed{a=9 ; b = -8}$

Step-by-step explanation:

$f(x) = \frac{ax+b}{x}$

Putting x = 1

=> $f(1) = \frac{a(1)+b}{1}$

Given that f(1) = 1

=> $1 = a + b$

=> $a+b = 1$ -------------------(1)

Now,

Putting x = 2

=> $f(2) = \frac{a(2)+b}{2}$

Given that f(2) = 5

=> $5 = \frac{2a+b}{2}$

=> $2a+b = 5*2$

=> $2a+b = 10$ ----------------(2)

Subtracting (2) from (1)

$a+b-(2a+b) = 1-10\\a+b-2a-b = -9\\a-2a = -9\\-a = -9\\a = 9$

For b , Put a = 9 in equation (1)

$9+b = 1\\Subtracting \ both \ sides \ by \ 9\\b = 1-9\\b = -8$

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3 years ago

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Alex17521 [72]

Answer:

Step-by-step explanation:

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3 years ago

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Hello,

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The domains are: {-1, 0, 3, 6} - as you can see these are the x values of each pair.

Let's review: The range is all the possible y values in a relation/function. To find the rang, we look at the y values of the pairs.

The ranges are: {3, 4, 6} - notice how there are two "6" in those pairs, and when writing the range, you don't need to repeat the number if it's already written.

I hope this helps! =)

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Answer:

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Step-by-step explanation:

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