Mathematics College

If the perimeter is 82cm and the length is 30cm, what is the width

Answers

Answer 1

Answer: 11cm

Step-by-step explanation:

2(30)+2x=82

60+2x=82

2x=22

x=11

Related Questions

The degree measure of two consecutive angles of a rhombus are represented by 5x+10 and 3x+50 find x

Answers

Answer:

Step-by-step explanation:

A square has a perimeter of 20x + 36. Write a simplified expression for the side length of the square.

Answers

Answer: 5x+9

Step-by-step explanation:

P=perimeter. s=side length.

P=4s

20x + 36=4s

s=5x+9

3x = y and x - 2y = 10

Answers

Answer: Rewrite equations:

3x=y;x−2y=10

Step: Solve3x=yfor y:

3x=y

3x+−y=y+−y(Add -y to both sides)

3x−y=0

3x−y+−3x=0+−3x(Add -3x to both sides)

−y=−3x

−y

−1

−3x

−1

(Divide both sides by -1)

y=3x

Step: Substitute3xforyinx−2y=10:

x−2y=10

x−23x=10

−5x=10(Simplify both sides of the equation)

−5x

−5

(Divide both sides by -5)

x=−2

Step: Substitute−2forxiny=3x:

y=3x

y=(3)(−2)

y=−6(Simplify both sides of the equation)

Step-by-step explanation:

Plz, help! Due soon!

You have just been hired as New York’s premier Real Estate Agent! In your company, you will make a 7% commission. The real estate market in New York is booming! As the realtor calculates your potential commission if you sell the property for list price.

If the listing price for Candy Cane Creek is $864, 550, how much commission would you receive?

Answers

Answer

$60,515:

Step-by-step explanation:

Answer:

$60,515:

..............

Help please!! I’ll give brainliest.

Answers

Answer:

1 and 2 . are functions, 3 and 4 are not.

Step-by-step explanation:

Ashton is paid $90 for 5 hours of work. He earned $18 in 1 hour. He earned $144 in 8 hours. At this rate, how much would Ashton be paid in 3 hours of work?

Answers

Answer:$54 for 3 hours of work

Step-by-step explanation:

Multiply 18 times 3

and you get 54

he would get 54$ in 3 hours

Question 1 of 10
Which algebraic expression represents this phrase?
the product of 40 and the distance to the finish line
OA. 40-d
OB. 40+ d
OC. 40-d
D. 4000

Answers

Answer:

None of the option match the answer

40 × d

Step-by-step explanation:

The product of two numbers is the result you get when you multiply them together. so product of 40 and d is 40×d

In their last game, the Arizona Cardinals scored 9 points in the first half. In the second half, they scored three less than two times the points in the first half. What is the ratio of the points scored in the second half to the total number of points scored?

Please HELP!

Answers

Answer:

[tex]\huge\boxed{\sf 15:24 }[/tex]

Step-by-step explanation:

In the first Half:

9 points

In the second half:

2(9)-3 = 18 - 3 = 15 points

Total Points:

9 + 15 = 24 points

Ratio of points scored in the second half to the total points:

15 : 24

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

PLEASE HELP FAST I ONLY HAVE ONE HOUR!!!!!

Answers

The correct option regarding the standard deviation of the residuals is given by:

The point will increase the standard deviation of the residuals because it has a large negative residual.

What are the mean and the standard deviation of a data-set?

The mean of a data-set is given by the sum of all values in the data-set, divided by the number of values.The standard deviation of a data-set is given by the square root of the sum of the differences squared between each observation and the mean, divided by the number of values.

Considering a scatter plot and a line of best fit, a residual is the difference between the observed value(scatter plot) and the predicted value(line of best fit).

Hence, the circled value has a large negative residual. For the standard deviation, the differences are squared, hence the circled value increasing the standard deviation, and the correct option is:

The point will increase the standard deviation of the residuals because it has a large negative residual.

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NEED! ANSWER HELP! PLEASE;

The midpoint between two points is (-16 12). of one endpoint is (-24 8) then the other is (-8,

A) 10
B) 12
C) 14
D) 16

Answers

Answer:

Step-by-step explanation:

The correct answer is option D which is the coordinate will be 16.

What is the midpoint?

The mid point of the line is defined as the center point of any line it means that the distance of this point is same from the one end and to the other end.

Given that:-

The midpoint between two points is (-16 12). of one endpoint is (-24 8) then the other is (-8,

The formula for calculating the midpoint of the line for the y coordinate will be:-

Ym= ( y1 + y2 ) / 2

12 = ( 8 + y2) / 2

24 = 8 + y2

y2 = 24 - 8

y2 = 16

Therefore the correct answer is option D which is the coordinate will be 16.

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What is the written form of the decimal 0.68?

Answers

Sixty-eight hundredths

Please help. I will give you brainlest

Answers

Answer:

B or C one of those

Step-by-step explanation:

Suppose r(140", P)(A) = B and
(RED 0 Rød) (A) = B, what is mZCPD?

Answers

Answer:

Step-by-step explanation:

In New Mexico, the World's Tallest Taco, which stands at a height of 356.78 feet, slowly sinks to the ground at a rate of 0.66 feet per year. After 15 years, how tall will the Taco be?

Answers

346.88 feet is the correct answer

Is -7 rational Helppppppp

Answers

Answer:

Rational numbers are fractions composed of integers. An integer is a number with no fractional part. So 7/8 is a ratio of whole numbers, which makes it rational. Negative or positive does not matter.

Step-by-step explanation:

7 is rational please mark me brainiefest

Richard took his driving test to get his license. Out of a 40-question test, he got 36
correct. What percent did Richard get incorrect?

Answers

Answer:

Richard got a 90% score on his quiz! Therefore, he got 10% of the questions incorrect.

Step-by-step explanation:

The method I used to find this answer was simply taking the amount he had gotten, 36, and dividing it by the initial amount of questions- 40. From there, I got 0.9, which is the equivalent of 90%. 100% minus 90% is 10%, so he got 10% incorrect. Sorry for the mishap, I didn't pick up that it was meant to be the amount incorrect. :)

Answer:

100 divide by 40 you get 2.5 multiply by 4 you should get 10 percent

Jennifer invests $7,000 in an account for 12 years that pays compound interest
annually. She uses the expression P(1 + r) to find the total value of the account.
What will be the total value of the account after 12 years if the interest rate is 1.6%?

Answers

Answer:

The rule is P(1+r%) power of time (T) so you're gonna apply the number to the rule

Step-by-step explanation:

P=7000

r=1.6%

T=12

7000 x (1+r%) power of T

(1+1.6%) power of 12 = 1.20983040

so when we calculate 7000 x (1+1.6%) power of 12

the answer will be = 8468.812846

Evaluate A^2-B^2 for A = 3 and B = -4

A.) -7
B.) -2
C.) 25

Answers

Answer:

A.) -7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Step-by-step explanation:

Step 1: Define

A² - B²

A = 3

B = -4

Step 2: Evaluate

Substitute: 3² - (-4)²Exponents: 9 - 16Subtract: -7

What is the equivalent radical expression for the exponential expression
below?
181/2

Answers

Answer: Use this rule to change the term to a radical:

√

⇒

√

⇒

√

We can simplify this expression, if necessary, by using this rule for radicals:

√

⋅

√

⋅

√

⇒

√

⋅

⇒

√

⋅

√

⇒

√

Step-by-step explanation:

The equivalent radical expression for the exponential expression [tex]18^{1/2}[/tex] will be √18.

What is under root?

The positive number, when multiplied by itself, represents the square of the number.

Under the root of any number gives a number by which if we multiply by the same number then it will give us the same number.

For example √4 =2

If we multiply 2×2 then it gives us 4.

√x is also written as [tex]x^{1/2}[/tex]

So,

[tex]18^{1/2}[/tex] ≡ √18 o will be the correct term in the radical expression.

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Math! Please give me the answer and EXPLAIN how you got it. (I need both)

Answers

Answer:

it's A. sis :)))) time 7 to (2x + 8)

Please please help me!!

Answers

Answer:

5/4x+1

Step-by-step explanation:

16 - 4x = 6x – 8x + 2

Answers

X=7
Subtract 8x from 6x = -2x
Add 4x to both sides and you get 16=2x+2
Then you subtract 2 from both sides and get 14=2x
Then you divide both sides by two and x=7

The quotient of n and 12 subtracted from 100?

Answers

Answer:

100 - 12/n

Step-by-step explanation:

quotient means division so

12/n

and subtracted from means say x - 12/n so

100 - 12/n

If you're looking to evaluate it then it would be

4(25n - 3) / n

Solve each system by substitution

4y - 6 = 2x
y- 3x=9

Answers

x = -3, y = 0 i think

Answer:

your answer is -3,0

Step-by-step explanation:

if you wanna check you can plug it into the bottom equation y -3(-3) =9

so 9=9 which is a true statement

Write the missing number that makes each equation true. Show your work. __ - 4 = 16 - 5

Answers

it is 15 cuz 15-4=11 and ,16-5=11

The missing number in the expression equivalent to 16 - 5 is 15 - 4.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, two expressions ___ - 4 = 16 - 5.

Now, RHS of the expression can be written as,

16 - 1 - 4.

= 15 - 4.

Therefore, LHS of the equation is 15 - 4.

So, 15 - 4 = 16 - 5.

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Which of the following represents the highest degree of relative performance?

Answers

Answer:

idek

Step-by-step explanation:

Out of what like the following what?

plz help me with this???

Answers

Answer:

[tex]\frac{9}{28}[/tex]

Step-by-step explanation:

Shaded area = 1 - [tex]\frac{1}{4}[/tex] - [tex]\frac{3}{7}[/tex] (Make them have the same denominator, 28)

= [tex]\frac{28}{28}[/tex] - [tex]\frac{7}{28}[/tex] - [tex]\frac{12}{28}[/tex] (Simplify)

= [tex]\frac{28}{28}[/tex] - [tex]\frac{19}{28}[/tex] (Evaluate)

= [tex]\frac{9}{28}[/tex]

Answer:

9/28 is the answer

Step-by-step explanation:

it maybe really late.

What will the y-coordinate/value be for A' (A
prime) if Triangle ABC is reflected about the y-
axis?

Answers

what are the coordinates if you tell me that I can help you

plz help thanks . uh idk what to write but it’s making me write

Answers

Answer:

A, 4, -1

It's reflected over the y-axis, so it goes to the right side.

Answer:

a (4,-1)

Step-by-step explanation:

A is the answer.

A teacher bought a packet of 17 batteries. Each calculator uses 3 batteries. How many calculators can the teacher fill with batteries? *

Answers

Answer:

The teacher can fill 5 calculators

Step-by-step explanation:

Answer:

Step-by-step explanation:

past 5 there would be a remainder.

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