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Hunter-Best [27]
3 years ago
10

Lucas is offered either 15% or 21$ off his total shopping bill. How much would have to be spent to make 15% option the best one?

Mathematics
1 answer:
Harman [31]3 years ago
8 0
Assume that the amount of money that Lucas would have to spend is "x".

Now, Lucas is offered:
either 15% of his total shopping which can be written as 0.15x
or 21$

We want the 15% to be a better option, therefore:
0.15x > 21

Solve the inequality for x:
0.15x > 21
x > 21/0.15
x > 140

Therefore, for the 15% back to be a better option, Lucas has to spend more than $140
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Tju [1.3M]

Answer:-

x=110 degree

Step-by-step explanation:

It's quadrilateral so it's total sum degree is 360

then 40+82+128+x=360

360-(128+82+40)=X

x=360-250

x=110 degree

4 0
3 years ago
Delaney is saving money in an account that offers 9% simple interest. She deposits 2000 from her grandmother into the account an
Brrunno [24]

Answer:

15years

Step-by-step explanation:

Given data

Rate= 9%

Principal= $2000

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The simple interest formula is given as

A= P(1+rt)

Substitute

4700=2000(1+0.09*t)

4700= 2000+ 180t

4700-2000= 180t

2700=180t

t= 2700/180

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Hence the time is 15years

6 0
2 years ago
Which of the following sets of ordered pairs represents a function? {(-2 , 1),(-1,3),(2,1)(-2,2)
anygoal [31]

Answer:(-1,3)

Step-by-step explanation:

7 0
3 years ago
Which of the following statements is not true of deductive reasoning? It is used when you solve an equation in algebra. It is us
erastova [34]

<u>Answer:</u>

"It is used when you solve an equation in algebra" is the untrue statement.

<u>Step-by-step explanation:</u>

"It is used when you solve an equation in algebra."

When you solve an algebra problem, you are not using deductive reasoning. You are using the information in front of you to correctly answer.

"It is used to make broad generalizations using specific observations."

This is exactly what deductive reasoning is, you are making generalizations and coming up with your own conclusions through observation.

"It is used to prove basic theorems."

This is also true, you can use deductive reasoning by using your specific observations and drawing conclusions to prove the theorems.

"It is used to prove that statements are true."

Using your own observations, you can draw your own conclusions to prove what you are saying is factual.

6 0
3 years ago
In the table below, y varies inversely as x. What is the missing value?
Minchanka [31]

Answer:

<h2>The value of y is <u>0.5</u>, so the answer is <u>C</u>.</h2>

Step-by-step explanation:

Find first the constant of variation.

Given: x = 3, y = 4

Find: k = ?

Formula:

y =  \frac{k}{x}

Solution:

y =  \frac{k}{x}  \\ 4 =  \frac{k}{3}  \\ 12 = k

Then, find the value of y in the third box.

Given: x = 24, k = 12

Find: y = ?

Formula:

y =  \frac{k}{x}

Solution:

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6 0
2 years ago
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