Mathematics High School

Arectangle's length is 3 feet longer than its width. The perimeter is 50 feet. In feet, what is the length of the rectangle?​

Answers

Answer 1

Answer:

14 ft

Step-by-step explanation:

50= 2x + 2(x+3)

50= 2x+2x+6

50=4x+6

-6        -6

44=4x

4     4

x=11 (width) +3 =14(length)  

11+11=22   14+14=28     22+28=50

Related Questions

SOLVE QUESTION 3 PART A AND B !! WILL GIVE BRAINLIST ..

Answers

Answer:

28π, reasonable

Step-by-step explanation:

A. Circumference is 2πr (or dπ), so we plug in 14 for r

this leaves us with 2π14, in which the 2 and 14 can multiply, so we get 28π

B. if we plug 28π into the calculator, you'll get 87.96, so 85cm is reasonable

what is the area of a trapezoid with side lengths of 13,13,20,30 and a height of 12 cm

Answers

Answer:

Area = [tex]156cm^{2}[/tex]

Step-by-step explanation:

A=a+b

2h=13+13

2·12=156cm²

I hope this helps you :)

help pleasee im not smart
|-13| = ?

Answers

Answer 13

Explanation: Those lines mean absolute value and it's the numbers's distance from 0 so -13 will be 13, all negative numbers turn positive if its in between those numbers and positive numbers do nothing.

0.4 = -9.8 -y + 2.8y

Answers

Answer: [tex]y=5.666667[/tex]   or   [tex]y=5 \frac{6}{9}[/tex] in fraction

Step-by-step explanation:

1. Simplify  -9.8-y+2.8y  to  -9.8+1.8y

0.4=-9.8+1.8y0.4=−9.8+1.8y

2. Regroup terms

0.4=1.8y-9.8

3. Add 9.8 to both sides.

0.4+9.8=1.8y

4. Simplify  0.4+9.8  to  10.2

10.2=1.8y

5. Divide both sides by 1.8

[tex]\frac{10.2}{1.8} =y\\[/tex]

6. Simplify [tex]\frac{10.2}{1.8\\}[/tex] to 5.666667

5.666667 = [tex]y[/tex]

7. Switch sides.

[tex]y=5.666667[/tex]

Hope this helps and can you please mark me brainliest because I just need 1 more brainliest to become expert:)

Answer:

[tex]y=\frac{17}{3}\\\\y =5\frac{2}{3}[/tex]

Step-by-step explanation:

[tex]0.4 = -9.8 -y + 2.8y\\\\Switch\:sides\\\\-9.8-y+2.8y=0.4\\\\\mathrm{Add\:similar\:elements:}\:-y+2.8y=1.8y\\\\-9.8+1.8y=0.4\\\\\mathrm{Multiply\:both\:sides\:by\:}10\\\\-9.8\times\:10+1.8y\times\:10=0.4\times\:10\\\\Refine\\\\-98+18y=4\\\\\mathrm{Add\:}98\mathrm{\:to\:both\:sides}\\\\-98+18y+98=4+98\\\\Simplify\\\\18y=102\\\\\mathrm{Divide\:both\:sides\:by\:}18\\\\\frac{18y}{18}=\frac{102}{18}\\\\Simplify\\\\y=\frac{17}{3}\\\\y =5\frac{2}{3}[/tex]

What is the slope of the line that passes through the points (-3, 1)(−3,1) and (7, -14)(7,−14) in the simplest form?

Answers

Answer:

1

Step-by-step explanation:

x2 minus x1 over y2 minus y1

Answer:

-3/2

Step-by-step explanation:

-15/10 = -3/2 when you simplify

Nine more than three times x is at least 15

Answers

Answer:

3x+9 ≥15

Step-by-step explanation:

three times x

3x

9 more than

3x+9

is at least 15

3x+9 ≥15

0.00125mi squared=?ft squared

Answers

Answer:

6.6

Step-by-step explanation:

Multiply the length value by 5280

The weight of one serving of skittles is 1.5 ounces. How much will 22.5 servings weigh?

Answers

Answer:

33.75 ounces

hope this helps

What are all of the real roots of the following polynomial?
f(x) = x5 + 3x4 + 5x3 + 15x2 + 4x + 12

Answers

According to the graphic method, the quintic function has a real root at (x, y) = (- 3, 0) and four complex roots.

How to find the roots of quintic equation

Quintic functions are polynomics of degree 5, there are numerical and graphical approaches to find real roots of those kind of polynomials. By algebra we know that quintic equations have at a least one real root and at most five real roots.

In this problem we shall use a graphic approach to determine the real roots of the quintic equation, as it offers sufficiency and quickness for analysis. Please notice that a point of the curve is a root if the point lies on the x-axis.

The graph is contained in the image attached below. According to the outcome, the quintic function has a real root at (x, y) = (- 3, 0) and four complex roots.

To learn more on polynomials: https://brainly.com/question/11536910

#SPJ1

what is 0.6 repeating as a fraction
hlp im dumb

Answers

Answer:

2/3 is equal to .6 repeating

Step-by-step explanation:

also youre not dumb :)

proportions, assist me please! ​

Answers

Step-by-step explanation:

[tex]w = \frac{1}{2} {x}^{2} y \\ (2)w = \frac{1}{2} {x}^{2} y(2) \\ 2w = {x}^{2} y \\ \frac{2w}{ {x}^{2} } = \frac{{x}^{2} y}{ {x}^{2} } \\ \frac{2w}{ {x}^{2} } = y[/tex]

Answer:

[tex]y = \frac{2x}{ {x}^{2} } \\ [/tex]

Quadratic function f is shown on the graph.

Function f is symmetrical around the point ___ .
A. (6,0)
B. (0,3)
C. (4,-1)
D. (2,0)

This point is the ___ of function f.
A. minimum
B. maximum

Answers

Answer:

(4,-1) Minimum

Step-by-step explanation:

Answer:

Step-by-step explanation:

Function f is symmetric around the point

(4,-1)

. This point is the

minimum

of function f.

The area of a parallelogram is 42 square inches. The base of the parallelogram is 6 inches. What is the height of the parallelogram? Explain how you can use the formula for the area of a parallelogram to solve the problem.

Answers

Answer:

7

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

x^{2}+x-90
can you answer this please and think you.

Answers

If this is just factoring, x^2 + x - 90 turns into this:
(x - 9)(x + 10)


If your trying to solve for x, we take the factored expression and set it equal to 0.
(x - 9)(x + 10) = 0

Set each binomial into two equations.
x - 9 = 0 and x + 10 = 0

Solve for x and we get two answers.
x = 9
x = -10

Find the equation of the line

Y= __x + __

Answers

Answer:

y=2x+5

Step-by-step explanation:

0,5

0,7

7-5 is 2

2/0 is 2

to check answer:

(2*0)+5

0+5

=5

See attachment for math work and answer.

2x squared — 11x + 15
factor as a quadratic equation with an explanation please and thank u. will give brainliest

Answers

Answer:

(2x−5)(x−3)

Step-by-step explanation:

Break the expression into two groups

(2[tex]x^{2}[/tex]-5x) + (-6x+15)

Factor out an x from the first group

x(2x-5)

Factor out -3 from the second group

-3(2x-5)

Factor out the common term and combine

x(2x-5)-3(2x-5)

(2x-5)(x-3)

5(x-6) = 2x - 18 + 2x

Answers

Answer: x = 4/3

Step-by-step explanation:

Solve y/2+22=38 for y

Answers

Answer:

The answer is y = 912.

Step-by-step explanation:

Write 7*7*7 using an exponent

Answers

Answer:

7^3

Step-by-step explanation:

Copied mandhizulfiquar

PLEASE ANSWER WILL MARK BRAINLIEST TO FIRST ANSWER.

Answers

Answer:

60 I think

Step-by-step explanation:

125 + 115=240

240-180÷60

Answer:

60

Step-by-step explanation:

The measure of angle i : 60

The tables given are for the linear functions f(x) and g(x). What is the input value for which f(x) = g(x) is true?

Answers

The answer is f(x) =3 and g(x)=5

Answer:

-1 on edge

Step-by-step explanation:

just did it

Which situation can be represented by the equation -4x5= -20

Answers

Answer:

it just 20

Step-by-step explanation:

WILL MARK BRAINLIEST NEED HELP WITH PROPORTIONS​

Answers

Answer:

x=-10

Step-by-step explanation:

either 5/51 or x=15 :))

4 divided by what gives me the answer

Answers

Answer:

9

Step-by-step explanation:

A bag of marbles contains five red 12 blue and seven green marbles select all choices below that would represent the simplified ratio of blue totaled marbles

Answers

Answer:

Whst is the answer choices

Step-by-step explanation:

What are the choices

May someone help me?

Answers

Answer:

11 1/5 feet!

Step-by-step explanation:

He needs a total of 27 9/10 feet! 11 1/2 + 5 1/5 is 16 7/10 feet! If we need 27 9/10 feet, we subtract 16 7/10 ft from 27 9/10 ft to get 11 2/10, which we can reduce 2/10 to be 1/5.

So, he needs 11 1/5 feet of wood more to build the doghouse for his new puppy!

This morning, Deon's car had 18.09 gallons of fuel. Now, 6.1 gallons are left. How much fuel did Deon use?

Answers

Answer:

11.99

Step-by-step explanation:

-5f - 3=7 what does f equal

Answers

Answer:

-2

Step-by-step explanation:

First, add 3 to both sides

-5f-3+3=7+3

Simplify

-5f=10

Then, isolate the variable by dividing both sides by -5

-5f/-5=10/-5

Simplify

f=-2

Teresa says she stacks about 7 dishes by hand every minute.
What line represents Teresa’s statement?

A. Line a
B. Line b
C. Line c
D. Line d

Answers

Answer:

line D

Step-by-step explanation:

Karen bought cupcakes for her sister's birthday party. 3 cupcakes had sprinkles on top. The other 27 cupcakes did not have sprinkles. What percentage of the cupcakes had sprinkles?

Answers

Answer:

10%

Step-by-step explanation:

so

3 cupcakes had sprinkles

27 didn't have sprinkles

which means that there are a total of 30 cupcakes, (because 3 + 27 is 30)

so then set up a proportion

part/whole = percent/one hundred

substitute in the given values

3 / 30= precent/100

simplify

1/10 = precent/100

you don't have to use cross products here because it is pretty obvious that 10 * 10 = 100 so then just multiply 1/10 by 10 and you get your answer

percent = 10

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