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3 years ago

2 (x – 4) = -5 How do I do this

Mathematics

1 answer:

DanielleElmas [232]3 years ago

8 0

Step-by-step explanation:

your going to distribute the 2 to the x and the four your equation will then become (2x-8)=-5 you would then do the opposite of subtraction which is add so add +8 to the -8 and that cancels it out then you would +8 to the -5 and get 2x=3 then I'm confused from there hope that helps kinda

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a bottle of hand lotion is on sale for $2.25 . If this price represents a 50% discount from the original price , what is the ori

N76 [4]

So 2.25 is 50% of the original price
let's write original price as x
50% of x = 2.25
0.5 * x = 2.25
divide both sides by 0.5
x = 4.5

The original price is 4.5

To check:
50% * (4.5) =?= 2.25
0.5 * 4.5 =?= 2.25
2.25 = 2.25

Hope this helps.

6 0

3 years ago

THIS IS AN EMERGENCY!! YOU GET ALL MY POINTS (AKA 15 I know I'm poor)!!

belka [17]

Answer:

9 grams

Step-by-step explanation:

<u>We can use these equations</u>:

y = ax

Where y is the total amount of baking soda (in mg)
Where a is the number of servings
Where x is the amount of baking soda in one single serving (in mg)

Here we know that y = 1800 and a = 2, so we will need to solve for x

Solving for x we get $x= \frac{y}{a}$ and plugging in our known values we get $x = \frac{1800}{2}$ and this simplifies to 900
This means one serving contains 900 mg of baking soda

We can now change the equation to solve for the total amount of baking soda required to serve 10 people

We know that a = 10 and x = 900
The equation is already solved for y, so plugging in our new values we have y = (10)(900) = 9000 mg
The recipe will require 9000 mg in order to serve 10 people

Now there are 1000 mg in 1 g, so converting mg to g we have 9000 mg is equivalent to 9 grams

5 0

3 years ago

Which expression is equal to (2x − 2)(3x – 3)?

Tanzania [10]

Answer:

6x^2-12x+6

Step-by-step explanation:

(2x-2)(3x-3)

6x^2-6x-6x+6

6x^2-12x+6

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4 years ago

marcus rented a movie for $4 and some video games for $6 each. he paid $22 how many games did he rent ? choose two anwers one fo

WINSTONCH [101]

4+6x=22
3 video games

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3 years ago

Which statement is modeled by the expression?

Agata [3.3K]

Answer:

the right answer is

"A store had 500 apples to be placed in bags with an equal number of apples in each bag. If n is the number of bags to be used, then 500n is the number of apples in each bag"

4 0

4 years ago

Read 2 more answers