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4 years ago

8

Simplify j + j + k - k + k

1 answer:

Karo-lina-s [1.5K]4 years ago

6 0

The answer is 2j + k

Here's how I got my answer:

Step 1: Simplify it to $J + J + K$

Step 2: Collect the like terms $(J + J) + K$

Step 3: Simplify to 2j + k

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(4g^3-1) (3g-10) and show work please

REY [17]

Hello! And thank you for your question!

For this problem we can use the FOIL method/distributive method.

Rewrite the equation to:

(4g³) + (-1)(3g) + (-10)

Then solve:

(4g³) times (3g¹) = 12g⁴

(4g³) times (-10) = -40g³

(-1) times (3g) = -3g

(-1) times (-10) = 10

Final Answer:

12g⁴ - 40g³ - 3g + 10

5 0

4 years ago

4. BAKE SALE Ashley has $15 in the Pep

Mekhanik [1.2K]

Answer:

a) 187.5 b) Domain c ∈ [0,187.5] c) Range ∈ [0,15]

Step-by-step explanation:

a) In this function, d stands for dollars and c stands for cookies. Ashley left $15 to pay supplies for making new cookies. The more cookies they made the less money it is left. For instance, If someone bakes 1 cookie using that money:

d=15-0.08c d=15-0.08(1) d=14.92 Then $14.92 is left after baking 1 cookie. And so on.

To find the zero of this function, let's turn this into an equation.

$d=15-0.08c\\0=15-0.08c\\-15=-0.08c\\\ \frac{0.08}{0.08}c=\frac{15}{0.08}\\c=187.5$

So according to this function, with 15 dollars at least 187 cookies can be made.

b) The function d=15-0.08c if it was defined for the Real Set, any value would be valid within the Real Set. But c, is for cookies. Then the set is

$Z_{+}$

$d=15-0.08c\\0=15-0.08c\\-15=-0.08c\\\ \frac{0.08}{0.08}c=\frac{15}{0.08}\\c=187.5$

Domain c ∈ [0,187.5]

c) The Range

The Range is the subset of all values between $15 and 0$, since after the money is over they can no longer bake cookies. And there's $-1 dollar note.

So the Range is d ∈ [0,15]

8 0

3 years ago

Two less than three times a number is equal to 19. What is the number?

EastWind [94]

The best way to approach a word problem like this

is to break it down into pieces, so we can understand it fully.

In this problem, we have a number, which we don't know.

We can use any variable to represent it.

So let's use the variable <em>n</em> to represent it.

"Two less than three times a number" means 3n - 2.

A common mistake is for students to put 2 - 3n.

However, the word "less than" switches the order around.

So we have 3n - 2 = 19.

Solving from here, we add 2 to both sides to get 3n = 21.

Now divide both sides of the equation by 3 and we have n = 7.

So the number is 7.

8 0

3 years ago

Equations with variables on both sides that make the answer x=9

nikklg [1K]

Answer:

$6x-3=2x+33$

Step-by-step explanation:

Apply creative thinking and come up with an equation where the final answer is x=9.

This might give a representation of how to do it algebraically:

$x=9\\4*x=4*9\\4x=36\\4x+2x=36+2x\\6x=2x+36\\6x-3=2x+36-3\\6x-3=2x+33$

4 0

3 years ago

WILL GIVE BRAINLIST AND LOST OF PIONTS!!!!!!!!!!!PLEASE HELP!!!

kvasek [131]

Answer:

5 day book fee would be $1.25 and 5 day video is $2.25 + 1.25= $3.50

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers