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2 years ago

Which of these relations are functions ?

Mathematics

2 answers:

Alex17521 [72]2 years ago

7 0

Your answer is 3. Y=2x-5

elixir [45]2 years ago

4 0

Answer:

A) y=5

C) y=2x-5

D) 2y=x-4

Step-by-step explanation:

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two classmates have decided to read all the volumes in a popular series of books. Katie has already read 4 volumes and will cont

scoray [572]

To solve this we can make it into an equation, which looks like this

y = 2x (for Rebecca)
y = x + 10 (for Alice)

The we subtract one equation from the other to solve

0 = x - 10
10 = x
x = 10

Now we replace x in whichever equation and we get 20

So, each girl will read 20 books for them to be at the same book.

Hope this helps, remember that Jesus loves you

5 0

2 years ago

-7(n+3)-8(1+8n)<br>Find answer

Oxana [17]

-7n-21-8-64n distributive property -7n-64n-29 commutative property -51n-29 combine like terms

4 0

2 years ago

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The ratio of the measures of the angles in cat is 2:7:9. find the measure of the smallest angle.

iren2701 [21]

Answer:

20º

Step-by-step explanation:

Total parts

2 + 7 + 9 = 18

Value of each part given 180º in a triangle

180 / 18 = 10º

Smallest angle

2 * 10 = 20º

4 0

2 years ago

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Solucion de esto : 9X2 = -15x

wolverine [178]

Answer:

9x2 = 18

Step-by-step explanation:

Im not sure what you mean lol

3 0

2 years ago

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Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of \$10$10 from e

serious [3.7K]

Answer:

$1200.

Step-by-step explanation:

We have been given that Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of $10 from each of the subscribers to her website.

First of all we will find the number of subscribers for this month.

$\text{Total number of subscribers this month}=100+30-10$

$\text{Total number of subscribers this month}=130-10=120$

Now let us multiply number of total subscribers of this month by 10 to find the amount Kiersten will earn by her online business.

$\text{Kiersten's earnings this month from online business}=120*10$

$\text{Kiersten's earnings this month from online business}=1200$

Therefore, Kiersten will earn $1200 this month by her online business.

8 0

2 years ago