Ella is trying to determine the side lengths of a triangle. She knows that the longest side is three times longer than the shortest side. The medium side is ten more than twice the shortest side. If the perimeter is 142 cm, how long is each side?

Answer:

There is only 340 gallons of fresh water

Step-by-step explanation:

giving the reason that all you have to do is divided by 10 to get you answer for percentage

If you want to find 1 percent then you divided the number by 100 and you get 1 percent

Please consider brainliest for this answer for it is correct Thank you!

<3

Answer:

t = 15

Step-by-step explanation:

[tex] = > \frac{t}{3} = \frac{5}{1} [/tex]

On cross multiplication,

[tex] = > t \times 1 = 5 \times 3 \\ = > t = 15[/tex]

Hope you've understood the solution.

Answer:

Step-by-step explanation:

In proportions, you need to isolate t on one side of the equation.

Given:

[tex]\sf{\dfrac{t}{3}=\dfrac{5}{1} }[/tex]

[tex]\Longrightarrow: \sf{\dfrac{t}{3}=5}[/tex]

First, multiply by 3 from both sides.

[tex]\sf{\dfrac{3t}{3}=5*3}[/tex]

Solve.

Multiply the numbers from left to right.

5*3=15

Solutions:

[tex]\Longrightarrow: \boxed{\sf{t=15}}[/tex]

I hope this helps. Let me know if you have any questions.

Answer:

Any powers or units. Such as Cm, M or KM, or even mm

please mark me as brainliest thank you

Answer:

(3,7)

Step-by-step explanation:

First, substitute for y. Simplify.

2x+(x+4)=13

3x+4=13

3x=9

x=3

Input the value for x into either of the equations.

y=3+4

y=7

(3,7)

Hope this helps!

well, Mai is 21 today and when she's 25 is 4 years from now, so

[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2000\\ r=rate\to 10\%\to \frac{10}{100}\dotfill &0.10\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &4 \end{cases} \\\\\\ A=2000\left(1+\frac{0.10}{1}\right)^{1\cdot 4}\implies A=2000(1.1)^4\implies A=2928.2[/tex]

Answer:

Composite number

Step-by-step explanation:

Factors of 38:

1 * 38

2 * 19

1, 2, 19, 38

Therefore, 38 is not a prime, but rather a composite number.

Hope this helps!

The values of a and b are 33% and 42.7% respectively.

Given:

The number of students that like blue uniform is only as 32,

The number of students that like gold uniform is only as 25,

The number of students that like blue and gold uniforms is 12

The number of students that like neither blue nor gold uniform as 6.

Then, the total number of students interviewed are 75 students.

The relative frequency of the students who like blue is 25, therefore,

25/75= 1/3= 0.33

= 33%

The relative frequency of the students that like blue but not gold is 32, therefore,

32/75= 0.427

=42.7%

Read more about frequency tables here:

https://brainly.com/question/4231235

Answer:

2x²+2x+5

Step-by-step explanation:

Since the area of a square is a² (where a is the length of one of its sides) we'll have:

(x—1)(x—1)+(x+2)(x+2) = (x²—2x+1)+(x²+4x+4) = 2x²+2x+5

So write the answer as: 2, 2 and 5

Step-by-step explanation:

1.

that creates a right-angled triangle :

the string is the Hypotenuse (the baseline, which is the side opposite of the 90° angle).

the invisible "line" from the kite straight down to the ground is one leg. and we need that length.

and the invisible "line" on the ground between the point where Brian is standing, and the point, where the : line: coming down from the kite hits the ground, is the second leg.

the angle between both legs is 90°.

so, we use the law of sine :

a/sin(A) = b/sin(B) = c/sin(C)

where the sides and the associated angles are always opposite of each other.

in our case, the Hypotenuse (the string) is opposite of 90°.

and the angle opposite of the kite height line is the designated angle of elevation at the point, where Brian is standing : 70°.

so, we have here

65/sin(90) = height/sin(70)

height = 65×sin(70)/sin(90)

sin(90) = 1

height = 65×sin(70) = 61.08002035... m

2.

another right-angled triangle.

what is not clear to me : what does "distance from plane to building" mean ?

is it really the line of sight from the plane in the air to the building in the ground ? which is the Hypotenuse of that triangle.

or is it the ground distance (from the point where the height line hits the ground to the building) ? which is also the air distance (parallel line to the ground distance up in the air with the plane).

remember, the sum of all angles in a triangle is always 180°.

per law of sine we have

height/ sin(28) = line of sight / sin(90) =

= air (or ground) distance / sin(180-28-90)

1200/sin(28) = line of sight / 1 =

= air distance / sin(62)

line of sight (if that is what we need) =

= 1200/sin(28) = 2,556.065362... m

air distance = 1200×sin(62)/sin(28) = 2,256.871758... m

3.

another right-angled triangle.

the Hypotenuse is the line of sight from the point 12 ft away in the ground to the top of the pole.

the ground distance (12 ft) is one leg.

the pole (and its height) is the second leg.

so, we have our law of sine

height/sin(53) = line of sight / sin(90) =

= ground distance / sin(180-53-90)

we need the height, so

height/sin(53) = ground distance / sin(37)

height = 12×sin(53)/sin(37) = 15.92453786... ft

Answer:

y = - 2x + 3

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 3 ) and (x₂, y₂ ) = (1, 1 )

m = [tex]\frac{1-3}{1-0}[/tex] = [tex]\frac{-2}{1}[/tex] = - 2

the line crosses the y- axis at (0, 3 ) ⇒ c = 3

y = - 2x + 3 ← equation of line

To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.

Answer:

x = 30°

Step-by-step explanation:

As the angle of 85° measure and the angle of (3x-5)° are vertical opposite angles, the measure of both the angles will be equal so...

(3x-5)° = 85°

3x = 85 + 5

3x = 90

x = 90/3

x = 30

So x is 30°

Let's recheck.

3x-5

(3 × 30) - 5

90 - 5

85°

Hence, the value of x = 30°

Answer:

see below

Step-by-step explanation:

-2x^2-3=11

add three

-2x^2=14

divide by 2

x^2=7

Answer:

7

Step-by-step explanation:

3+4 as the denoninators are the same

Answer:

[tex]\Longrightarrow: \boxed{\sf{\dfrac{7}{k} }}[/tex]

Step-by-step explanation:

You have to find the numerator number by adding it to the denominator.

[tex]:\Longrightarrow \sf{\dfrac{3}{k}+\dfrac{4}{k}=\dfrac{?}{k} }[/tex]

[tex]\Longrightarrow: \sf{\dfrac{3+4}{k}}[/tex]

First, add the numbers from left to right.

[tex]\sf{\dfrac{3+4}{k}=\boxed{\sf{\dfrac{7}{k}}}[/tex]

I hope this helps, let me know if you have any questions.

Answer: 336

Step-by-step explanation:

Calculate the volume with length and breadth and height 8 × 6 × 7

Answer:

15

Step-by-step explanation:

Pat, Jo, Al, Dan

Pat, Al, Dan, Jo

Pat, Dan, Jo, Al

Pat, Jo, Dan, Al

Pat, Al, Jo, Dan

Pat, Dan, Al, Jo List all permutations beginning with Pat.

Jo, Al, Dan, Pat

Jo, Dan, Pat, Al

Jo, Pat, Al, Dan

Jo, Al, Pat, Dan

Jo, Dan, Al, Pat

Jo, Pat, Dan, Al List all permutations beginning with Jo.

Al, Dan, Pat, Jo

Al, Pat, Jo, Dan

Al, Jo, Dan, Pat

Al, Pat, Dan, Jo

Al, Dan Jo, Pat

Al, Jo, Pat, Dan List all permutations beginning with Al.

Dan, Pat, Jo, Al

Dan, Jo, Al, Pat

Dan, Al, Pat, Jo

Dan, Jo, Pat, Al

Dan, Pat, Al, Jo

Dan, Al, Jo, Pat List all permutation beginning with Dan.

There are 24 ways for Pat, Jo, Al, and Dan to finish in first, second, third, and fourth place in the contest.

The services that an organization accepting charitable donations would provide are; A, B, D

What are uses of charitable donations?

An organization that accepts charitable donations is classified as a non-profit organization.

A non - profit organization is simply a group that works in order to help with a particular cause and it uses its earnings to work for this goal instead of profit making or sharing the money to its' members.

From the given options, the services that an organization accepting charitable donations provide are:

Read more about Charitable donations at; https://brainly.com/question/13940953

Answer:

A B D

Step-by-step explanation:

98% on the exam and 100% on exam review

Answer:

8/5

Step-by-step explanation:

You multiply the numerators and divide by the denominator as long as they have the same one.

Answer:

8/5 - 1 3/5

Step-by-step explanation:

You just multiply the Numerators

Then Simplify

Answer: Darkness

Step-by-step explanation: If there is more darkness you will be able to see less so ya

Answer:

Step-by-step explanation:

First take the square root of the first number 144, then take the square root of your variable x^3

your final answer should be 12x^(3/2)

Answer:

Putting all the x's to one side.

Step-by-step explanation:

By doing this, you would get:

10 = 2.5x

so,

4 = x

Answer:

We subtract 5x from both sides

Step-by-step explanation:

Step 1:  Subtract 5x from both sides

[tex]5x + 10 = 7.5x[/tex]

[tex]10 + 5x - 5x = 7.5x - 5x[/tex]

[tex]10 = 2.5x[/tex]

Step 2:  Divide both sides by 2.5

[tex]\frac{10}{2.5} = \frac{2.5x}{2.5}[/tex]

[tex]4 = x[/tex]

Answer:  We subtract 5x from both sides

To find the constant of proportionality:

  ⇒ must define constant of proportionality

    ⇒ Constant of Proportionality:  ratio of two proportional values at a

       constant value

       ⇒ (in this case) two proportional values are x and y

The ratio between x and y is equal to

  [tex]\frac{y}{x} =\frac{66}{1.2}=55[/tex]

Answer: 55 or Choice 1

Hope that helps!

Answer:

A. i think so..

Step-by-step explanation:

A.should be there

Answer:

if she does so multiply by seven to get final answer

Answer:

56 cups per week

Step-by-step explanation:

there is 16 cups of water in a gallon

.5 gallon x 7days = 3.5 gallons

3.5 gallons  *  16 cups/ gallon = 56 cups per week

Answer:

Bro in one way she can grab

Answer:

$57.93

Step-by-step explanation:

14 x 12 = 168

168/2.9

Answer:

7 2/5 and/or -37/5

Step-by-step explanation:

It can also be 7.04 also