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3 years ago

Y varies directly with x. If y=3 when x=4, find y when x=20.

Mathematics

1 answer:

mina [271]3 years ago

8 0

X=15

Since 20/4 is 5 and 5•3 is 15

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What are the zeros of the polynomial function f(x) = x3 + 2x2 − 24x?

Alik [6]

You may notice that all of the terms have a common factor: $x$ . So, let's take the $x$ out of all the terms. This gives us:

$x(x^2 + 2x - 24) = 0$

Using the Zero Product Property, we can say that both $x = 0$ and $x^2 + 2x - 24 = 0$ .

Let's solve both. $x = 0$ is obvious, but we still need to solve our other term:

$x^2 + 2x - 24 = 0$

Set up

$(x + 6)(x - 4) = 0$

Factor

$x = -6, 4$

Apply the Zero Product Property

Our answer is x = -6, 0, 4.

4 0

3 years ago

Solve for y.<br> 10 = 6 + y

frutty [35]

Y =4
if you replaced y with 4 the equation would be true...

it's easy math
- hope you have a nice day...

6 0

2 years ago

Read 2 more answers

2). Bill has twice as many candies as Fred. Tim has 3 fewer than 3 times as many candles as Fred.

sasho [114]

Step-by-step explanation:

<h2>Answer:-</h2>

$\tt{Let \ the \ candies \ taken \ by \ Fred \ be \ x.}$

Now, let's Solve!

So, according to Question,

Bill = 2x

Tim = 3x-3

Total Candies = 177.

$\bf{x+2x+3x-3=177}$

Totalling x,

$\bf{6x-3=177}$

$\bf{6x=177+3}$

$\bf{6x = 180}$

$\boxed{\sf{x = 30}}$

So, Fred has 30 candies.

Bill's Candies = 2×30 = 60 Candies

Tim's Candies = 3×30-3 = 90-3 = 87 Candies.

Hope it helps :)

7 0

3 years ago

Evaluate 13+6 over y when y=6

Zepler [3.9K]

Answer:19/6

Step-by-step explanation:

you would first get 13+6/6

Which is 19/6 when you add 13 +6 then divide by 6

6 0

3 years ago

Many food products are packaged in a variety of sizes. The list below gives the sizes and costs of fruit juice drinks at one sto

kicyunya [14]

The two sizes chosen for this item are a quart and one gallon.

The first one is advantageous because when it is desired that this be brought some place, it will not be very bulky and not heavy because among the given, this is the smallest. Also, one gallon can be chosen because it does serve many people at a relatively lower price than the other given.

5 0

3 years ago