Which og the following represents an equation? a. 3x+13-5 b. 3+11=14 c. x+14 d. x/5-2

Answers

Answer 1

Answer: b. 3+11=14 because it has an equal sign.
equation has the word equal so evrething with an equal sign is an equation

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On a recent day a Euro was equal to about 1.2 American dollars. Write an expression which estimates the number of dollars in x Euros. Then estimate the number of American dollars equal to 25 Euros.

Answers

The expression for x euros is 1.2x American dollars and 25 euros is equal to 30 American dollars.

What are expressions?

A mathematical operation such as subtraction, addition, multiplication, or division combines terms into an expression. In a mathematical expression, the following terms are used:

An absolute numerical number is referred to as a constant.

Variable: A symbol without a set value is a variable.

Given Euro was equal to about 1.2 American dollars

1 Euro = 1.2 American dollars

x Euros = 1.2*x American Dollars

x Euros = 1.2x American Dollars

and 25 euros equals,

25 Euros = 1.2 *25 American Dollars

25 Euros = 30 American Dollars.

Hence the value of 25 Euros is equal to 30 American Dollars.

Learn more about expressions;

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Euro = 1.2 Dollars

x Euros = 1.2*x Dollars

x Euros = 1.2x Dollars

25 Euros = 1.2 *25 Dollars

25 Euros = 30 Dollars.

Write a real world problem that correspond to the equation 10x + 30 =100?

Answers

10x + 30 = 100

Here is a real world problem to demonstrate this.

Mack decides to burn some calories, so he attends a gym. A cost of a gym costs 10 dollars per month, with an addition registration fee of 30 dollars. Mack has spent 100 dollars on the gym so far. How many months has he been participating at the gym?

Let 'x' represent the amount of months spent.

Saturday night after the marshmallows ran out, the counselor
threw 30 cold stones on the campfire, and sent the campers
to bed in their tents.

But several campers noticed that there were still live coals in
the fire. This was a tent situation, and they knew that they
should not leave until it's completely out. So they each
picked up 10 cold stones and they all threw those on the fire
too. Then the fire was really out, so they all went to their tents.

In the morning the same campers who threw 10 stones apiece
onto the fire all got together and went to look at it. It was definitely
stone cold, so they spread it out and counted all the stones in it.
They found that there were exactly 100 stones. How many
campers threw stones on the fire after the counselor left ?

What is the answer for 3912.99/15.9

Answers

The question asks the answer that comes out from the division of 3912.99 by 15.9. Both the numbers are in decimal form, so the division will be easy.
3912.99/15.9
= (391299 * 10)/(159 * 100)
= (391299)/(1590)
= 246.10
So the answer that comes out from the division of the two numbers given in the question is 246.10. I hope i have described the full process and it has helped you to understand the way these kind of problems need to be tackled.

The answer to your question is 246.1

What is the measurement of N?
A) 70°
B) 71°
C) 72°
D) 73°

Answers

This whole triangle equals 180 degrees.

180-107=73! (you must subtract 107 from 180 to find the other sides degree)

The answer is: D. 73!

What is the total price of $123.28 with a 7.5% tip

Answers

Answer: 9.2 rounded

Step-by-step explanation:

$123.28 * 7.5% = 9.24600

Which problems result in a positive number? Choose all answers that are correct. A. –4.6 • 1.6 B. –10 • (–5.2) C. 8.4 ÷ 2 D.

Answers

Well you can automatically eliminate, A, because when you multiply one number that's positive and another number that's negative the result is always going to be negative.
However, when you multiply two negatives the result is always positive!

So, the only ones up there that would result in a positive number is B and C

***D. was not posted so I cannot determine that one!

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PROBLEM #1Keith has $500 in a savings account at the beginning of thesummer. He wants to have at least $200 in the account by theend of summer. He withdraws $25 a week for his cell phonebill.Write an inequality that represents Keith's situation.