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3 years ago

Write a real world problem that could represented by the following 30+0.05x=40+0.01x

1 answer:

4 0

In this item, we are given with two expressions that are equated to each other.

A real life scenario is that there are two items in the store, one item, we name it as Item A, is initially sold at a price of $30. The other item, Item B, is initially sold at $40. Let's say that for every interested buyer of Item A, the price increases by $0.05. Also, for every interested buyer of Item B, the price increases by $0.01. Then, we find how many interested buyer should be there for each of the item for the Items to have the same price.

If we calculate the equation,
30 + 0.05x = 40 + 0.01x
Transpose the like terms to one side of the equation and the constants to another.
0.04x = 10
x = 250

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If y = 5x – 4, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?

lidiya [134]

Answer:

Step-by-step explanation:

Substitute the x value into the right side of the function and if the value obtained is equal to the y value of the point then it is a solution.

(0, - 4) → y = 5(0) - 4 = 0 - 4 = -4 ← True

(2, 6) → y = 5(2) - 4 = 10 - 4 = 6 ← True

(4, 20) → 5(4) - 4 = 20 - 4 = 16 ← False

(4, 16) → 5(4) - 4 = 20 - 4 = 16 ← True

(0, - 4), (2, 6), (4, 16) ← possible inputs and outputs

8 0

3 years ago

Solve by the method of balancing and equation and write the step use to separate the variable.....

lesya [120]

Answer:

the required answers are :

c) x = 2

d) x = 27 / 7

e) x = 9

f ) x = 6

Step-by-step explanation:

for explanation see the attached image

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5 0

2 years ago

Whats greater .12 or 12/16

Semenov [28]

Answer:

12/16 is greater than 0.12.

Step-by-step explanation:

0.12 = 12/100 = 6/50 = 3/25

12/16 = 3/4.

So, 12/16 is greater than 0.12.

4 0

3 years ago

Read 2 more answers

When David was asked how old he was, he said " I'm three times younger than my dad, but twice as old as Rebecca. " Then little R

daser333 [38]

Using a system of equations, it is found that David is 12 years old.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

The variables are given as follows:

Variable x: David's age.

Variable y: Dad's age.

Variable z: Rebecca's age.

David is three times younger than the dad and twice as old as Rebecca, then:

x = y/3 -> y = 3x.

x = 2z.

Rebecca is 30 years younger than the dad, hence:

z = y - 30.

Then, since x = 2z and z = y - 30 and y = 3x, we solve for x to find David's age.

x = 2(y - 30)

x = 2(3x - 30)

x = 6x - 60

5x = 60

x = 60/5

x = 12.

David is 12 years old.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

8 0

1 year ago

Write this in equation form 5 less than risk equal to 16

dolphi86 [110]

Risk - 5 = 16. It is just mathematical language.

7 0

3 years ago