I don't really get what it mean by "A group of 10 friends had lunch together at a restaurant. The meal cost a total of $99.50, including a 15% tip. How much was the total bill for lunch before tip?"

Answers

Answer 1

Answer: don't mind how many frieds there were, they question doesn't ask about that

so
original=100%
plus a 15% tip
100%+15%=115%

the total WITH tip was 99.50

therefor
99.50=115% of total befoer tip

percent means parts out of 100
115%=115/100=1.15

'of' means multipy

99.50=1.15 times totalbeforetip
divide both sides by 1.15
86.521=totalbeforetip
round
86.52=totalbefretip

totalbeforetip=$86.52

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I need help asap pls and thank you

Answers

Answer:

Step-by-step explanation:

Using the hint given

1st term + common difference (desired term - 1)

(12) + (3) (20-1)

Alexia started babysitting when she was in high school. She has built a reputation for herself and has become popular among the neighborhood parents. Alexia charges $10/h and gets a $5 automatic tip. Alexia needs $75 to buy a present for her mother. She wants to find out the minimum number of hours she needs to babysit at one job to get the money she needs. (5 points) a. Write an inequality to show how to solve this problem. Identify what the variable is and what it represents. b. Solve the inequality to find out the minimum number of hours Alexia needs to babysit. Show Your Work.

Answers

h= number of hours worked.

10h+5 ≥75 (1)

10h ≥ 70 (2)

h ≥7 (3)

Y – x² = 4.5 and y = x^4 Is this function linear or non linear?

Also show work and explain why.

Answers

Linear functions are in the form y=mx+b.

But the functions are in the form of y=x^4 and y-x^2=4.5.
Their exponents make them a quadratic function so it doesn't have the same rate of change. Therefore the equations are not linear. They are quadratic.

Linear functions are in the form of y = mx + b.

y - x² = 4.5 is not linear because of the x².

y = x⁴ is not linear because of x⁴.

two parallel lines are graphed on a coordinate plane.how many of the lines could represent proportional relationship?Explain.

Answers

Solution:

You need minimum of two lines which are parallel or coincident to represent proportional relationship.

Suppose two lines in one dimensional plane is Coincident.These lines are represented by a and b. Then to represent proportional relationship between them ,we can write it as follows

a = K b

or, b= Ta, where K and T are proportionality constant.

→→Line in two dimensional coordinate plane, which passes through origin or are Coincident, represents proportional relationship.

1. 2 x + 3 y= 5

2. 4 x + 6 y =10

Line 2 = 2 × Line 1

2. y= k x is equation of any line passing through origin, where k is constant of proportionality between x coordinate and y coordinate.

It's not necessary that either one represents a proportional
relationship. But if either one does, then the other one doesn't.
They can't both represent such a relationship.

The graph of a proportional relationship must go through
the origin. If one of a pair of parallel lines goes through
the origin, then the other one doesn't. (If two parallel lines
both went through the origin, then they would both be the
same line.)

What is 20 divided by 4

Answers

The final result is 5, which means that 20 divided by 4 is equal to 5.

What is 20 divided by 4

When we divide 20 by 4, we are essentially finding out how many times 4 can be subtracted from 20.

To calculate this, we start by dividing the first digit of 20, which is 2, by 4. Since 2 is smaller than 4, we move to the next digit, which is 20. 20 divided by 4 is 5.

Therefore, we know that 4 can be subtracted from 20 five times.

So, we can subtract 4 multiplied by 5 (which is 20) from 20. This leaves us with 0.

Therefore, the final result is 5, which means that 20 divided by 4 is equal to 5.

Learn more about Division at brainly.com/question/25289437

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4 multiplied by 5 is 20. Therefore 20 divided by 4 is 5.

10 cups Equals how many pt

Answers

The answer you are looking for is 5

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