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3 years ago

Which representation shows y as a function of x?

Mathematics

2 answers:

AveGali [126]3 years ago

8 0

I think the correct answer A is a function

Aleks [24]3 years ago

6 0

Option A would be a function because the input (x) must be paired to directly 1 unique output (y). However the outputs can be paired to different inputs.

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38% of what number is 171?

erastova [34]

Answer:

450

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Graph the solution to the inequality on the number line. please help me

Phoenix [80]

Answer:

Step-by-step explanation:

7 0

3 years ago

at the fast food restaurant, four cheeseburgers and five small fries have a total of 2,310 calories. three cheeseburgers and two

qwelly [4]

Answer:

There are 230 calories in each cheeseburger and 290 calories in each small fries.

Step-by-step explanation:

Let us assume:

The calories in each cheeseburger = x

The calories in each small fries = y

So, the calories in 4 cheeseburger

=4 (calories in 1 cheeseburger ) = 4 x

and the calories in 5 small fries = 5(calories in 1 small fries ) =5 y

⇒ 4 x + 5 y = 2310

Similarly, calories in 3 cheeseburger

= 3 ( calories in 1 cheeseburger ) = 3 x

and the calories in 2 small fries = 2 (calories in 1 small fries )= 2 y

⇒ 3 x + 2 y = 1330

Solving the given system of equation:

4 x + 5 y = 2310 ............(1)

3 x + 2 y = 1330 ............. (2)

Multiply equation (1) with (-3) , and (2) by 4 and add both equation.

-12 x - 15 y + 12 x + 8 y = -6930 + 5320

or, - 7 y = -1610

⇒ y = 1610 / 7 = 230 , or y = 230

Putting this in (2) , we get 3 x + 2 y = 1330

⇒ 3 x + 2(230) = 1330 or, 3 x = 1330 - 460 = 870

or, x = 870/3 = 290

⇒ x = 290

Hence, there are 230 calories in each cheeseburger.

There are 290 calories in each small fries.

3 0

3 years ago

Markus sent a chain letter to his friends, asking them to forward the letter to more friends. The relationship between the elaps

Ray Of Light [21]

Answer:

Every day, 43% percent of people are added from the total number of people who receive the email

Step-by-step explanation:

we know that

The equation of a exponential growth function is given by

$P(t)=a(1+r)^t$

where

P(t) is the total number of people who receive the email

t is the time in days

a is the initial value

r is the rate of change

we have

$P(t)=6(1.43)^t$

$a=6$ ---> initial number of people who receive the email

$(1+r)=1.43$

solve for r

$r=1.43-1\\r=0.43$

Convert to percentage

$0.43(100)=43\%$

The daily percent change in the number of people who receive the email. every day is 43%

therefore

Every day, 43% percent of people are added from the total number of people who receive the email

4 0

3 years ago

Read 2 more answers

A line contains the points (82, −96) and (87, −86).

Alik [6]

Answer:

<h2>The answer is 2</h2>

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

$m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(82, −96) and (87, −86)

We have

$m = \frac{ - 86 - - 96}{87 - 82} = \frac{ - 86 + 96}{5} = \frac{10}{5} = 2 \\$

We have the final answer as

Hope this helps you

8 0

4 years ago