MATHEMATICS HIGH SCHOOL

Find the perimeter and area of a rectangle whose length is (x + 1) and whose width is (x - 3). Express your answer in terms of x. With explanation if you can plz and thx

Answers

Answer 1

Answer:

Answer:

Perimeter=2L+2w

P=2(x+1)+2(x-3)

P=2x+2+2x-6

P=4x-4

Area=Lxw

A=(x+1)x(x-3)

A=x^2-3x+x-3

A=x^2-2x-3

Step-by-step explanation:

I don't have one :v

Answer 2

Answer:

Final answer:

The perimeter of the rectangle is 4x - 4 and the area is x^2 - 2x - 3.

Explanation:

The perimeter of a rectangle is calculated by the formula 2*(Length + Width). Hence, the perimeter for the rectangle in question will be 2*((x + 1) + (x - 3)) = 2*(2x - 2) = 4x - 4.

The area of a rectangle is calculated by the formula Length * Width. Therefore, the area for the rectangle equals (x + 1) * (x - 3) = x^2 - 3x + x - 3 = x^2 - 2x - 3.

Learn more about Rectangle Area and Perimeter here:

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In a class test.containing 15 questions 4 marks are given for every correct answer and -2 marks are given for every wrong answer james attempt all the question but only 9 of his answers correct .What is his total score

Answers

Answer:

Step-by-step explanation:

(9*4) + (6*2)

36 + 12

= 48

Step-by-step explanation:

no:questions=15

correct questions =9

marks for correct answers =9×4=36

incorrect answers=6

marks for incorrect answers =(-2)×6=(-12)

full marks =36 - (-12)

=36 + 12

=48

Katye received 15 gifts and a total of $100 in cash for her birthday. She buys one book that costs $23, and she wants to donate $10 to each of several local charities. How much money will Katye have left over if she donates to as many charities as possible?Describe steps you would use to solve the problem. You do not need to find the answer.

Answers

Okay, so first, Kate buys one book that costs $23. Let's subtract 100 by 23, which is 77. Next, she wants to donate $10 to several charities. If she is feeling extra generous and donates to as many charities as possible, she will donate to seven charities with seven dollars left over. How would I figure this? Well, divide 77 (the sum left over after purchasing the book) by 10. That equals seven (there are seven tens in 70) with a remainder of 7 (she has seven dollars left over, since she cannot donate $7, she can only donate in tens). Hope this helps.

Answer:

Subtract 23 from 100 to find the amount available to donate.

Divide the amount available by 10 and round down to find the number of charities.

Multiply the number of charities by 10 to find the total charitable donation.

Subtract the total charitable donation from the amount available to donate.

Step-by-step explanation:

You just went on a blind date and wanted to impress the girl by adding an 18% tip to the total cost of the meal. Two dinners came to a total of $35.90. Desserts cost $7.50 and beverages cost $6.60. What is the 18% tip going to cost?

Answers

so find total
35+7.5+6.6=49.1

18% of 49.1=0.18 times 49.1=8.838 round
tip=$8.84

Answer:

the answer is 9.00

Step-by-step explanation:

Add all the courses to get the total cost of the meal:

Total cost = $35.90 + $7.50 + $6.60 = $50.00

Get 18% of the total, to compute the tip to be paid:

$50(18%) = $50(.18) = $9.00

The United States Capitol Rotunda is a circular room located in the Capitol Building in Washington, D.C. The radius of the room is 48 feet. What is its circumference? Use 3.14 for LaTeX: \piπ.

Answers

Answer:

301.44 feet

Step-by-step explanation:

Formula for circumference:

C = 2πr

The radius given:

r = 48 feet

The circumference is:

C = 2*3.14*48 = 301.44 feet

Answer:

dude you rock

Step-by-step explanation:

A sample of 50 11th graders were asked to select a favorite pattern out of 6 choices. the following display shows what their favorite color patterns were. blue on gray 4
green 9
pink polka dots ?
purple 11
red and orange stripes 9
yellow 3

the counts have been recorded in the accompanying table according to pattern and the number of students who selected the pattern. what is missing value in the table?

Answers

There a total of 50 11th graders who had to choose between 6 different color patterns. Among the 6 patterns, only the students who had chosen the pink polka dots are missing. To look for this missing value, simply subtract 50 to the sum of all of the known values of the 5 other colors to obtain the number of students who had picked pink polka dots. This is shown below:

50 - 4 - 9 - 11 - 9 - 3 = x
X = 14

Therefore, there were 14 students who chose pink polka dots.

Answer: 14

Step-by-step explanation:

A P E X

It takes 8 cups of chicken broth to make a chicken soup recipe. How much is this in quarts?