A triangle has sides of (2x), (x - 7) and (3x - 20).
(x - 7)
2x
(3x - 20)
(a)
Find an expression, in terms of x, for the perimeter of the triangle.
Give your answer in its simplest form.
The perimeter of the triangle is 87cm.
Work out the value of x.
(b)

Answers

Answer 1
2x+x-7+3x-20=87cm
6x-27=87
6x=114
x=19
Therefore the sides are:12cm, 38cm, and 37cm

Related Questions

what is the slope of the line that passes through points (-4,9) and (6,12)

Answers

Answer:3/10 or 0.3

Step-by-step explanation:

y2-y1/

x2-x1

12-9/6--4

3/10

or 0.3

slope=3/10 or 0.3

The given line passes through the points (0, ) and (2, 3). On a coordinate plane, a line goes through (0, negative 3) and (2, 3). A point is at (negative 1, negative 1). What is the equation, in point-slope form, of the line that is parallel to the given line and passes through the point (-1,-1)?

Answers

Answer:

1st answer i think

Step-by-step explanation:

perpendicular sides mean plz

Answers

Answer:

lines that will never touch

Step-by-step explanation:

these are lines that you could keep drawing and they will never cross or touch

If mL DOC = 44º and mL COB = 80°,
find the measure of the indicated arc
in circle o.
D
с
O
E
B
mDB = [?]°

Answers

The answer is 80 arc cb has the same measures as the central angle

Answer:

124°

Step-by-step explanation:

measure of arc DC = 44 because the measure of central angle equals the measure of its arc.

measure of arc CB = 80 because the measure of central angle equals the measure of its arc.

measure of arc DC = measure of arc DC + measure of arc CB

                                = 44 + 80 = 124°

A square has an area of 24 square inches. What is the length of the side of the square to the nearest tenth?​

Answers

Answer:

4.9 sq inches

Step-by-step explanation:

the side of the square = √24 = 4.9 sq. inches

4.9 inches is the answer

Reuben made $247 for 13 ours of work.
At the same rate, how many hours would he have to work to make $171 ?

pls help!!!

Answers

Answer:

9 hours

Step-by-step explanation:

We can use a ratio to solve

247 dollars       171 dollars

---------------- = -------------

13 hours             x hours

Using cross products

247* x = 13*171

247x =2223

Divide each side by 247

247x/247 =2223/247

x=9

Ryan earns $5 for each small dog he walks and $8 for each large dog he walks. Today he walked 8 dogs and made a total of $49. How
many small dogs did Ryan walk?

Answers

Answer:

5

Step-by-step explanation:

There are no multiples of 5 or 8 that would end with 9. But if he walks 3 large dogs he gets 24 dollars. if he walks 5 small dogs thats an additional 25 dollars. so he would make 49 dollars.

78-[5+3 of (25-20)]
can you please help me solve this?​

Answers

Answer:

38

Step-by-step explanation:

➜78-[5+3×(25-20)]

➜78-[8(5)]

➜78-40

➜38

Jenny used plastic cone shaped cups to serve punch. The cups were 6 inches in diameter and inches tall. What was the volume of each cup?

Answers

Answer:

47.14 in³

Step-by-step explanation:

Here is the complete question

Jenny used plastic cone shaped cups to serve punch. The cups were 6 inches in diameter and 5 inches tall. What was the volume of each cup?

Volume of a cone = [tex]\frac{1}{3}[/tex]πr²h

π = 22/7

Radius = diameter / 2 = 6 /2 = 3 inches

(1/3) x (3^2) x (22/7) x 5  = 47.14 in³

Use the function below to find F(2)

F(x)=1/3•4^x

Answers

Answer

The answer is 16/3

Step-by-step-explain

F(x) = ⅓ • 4ˣ, F(2)

F(2) = ⅓ • 4²

F(2) = ⅓ • 16

F(2) = 16/3

Thus, The answer is 16/3

-TheUnknownScientist

Answer:

Step-by-step explanation:

16/3

I hope it's helpful

Please help me with this

Answers

Answer:

Below, and I hope that this helps you.

Step-by-step explanation:

So you see that it says Find the probability that the sum on the two dice is 4 given that the sum is even. So that means that it would be 2 dices that have rolled a 4 and the equation would be 2×4= 8, So that means that you want to write the answer which is 8 in a fraction, and 8 in a fraction is 8/1

Which expression is equivalent to the expression for the perimeter of the larger garden. Select all the apply.

Answers

Answer:

Option A, 4X + 40 expression is equivalent to the expression for the perimeter of the larger garden

Step-by-step explanation:

The complete question is

A garden is 15 feet long by 5 feet wide. The length and width of the garden will each be increased by the same number of feet. This expression represents the perimeter of the larger garden: (x+15)+(x+5)+(x+15)+(x+5). Which expression is equivalent to the expression for the perimeter of the larger garden? Select all that apply.

4x+40 2(2x+20) 2(x+15)(x+5) 4(x+15)(x+5) 2(x+15)+2(x+5)

Solution

The expression for the perimeter of the larger garden: [tex](x+15)+(x+5)+(x+15)+(x+5)[/tex]

If the given expression is expanded and solved, we get the following

[tex](x+15)+(x+5)+(x+15)+(x+5)\\X+X+X+X + 15+15+5+5\\2X+2X+30+10\\4X +40[/tex]

Hence, option A is correct

If the measurement of angle 3 is 120 degrees, what is the measurement of angle 5?

Answers

I wish I can help but I’m bad at this sorry!

How many solutions does this system have?
y=3/4x-5
-3x+4y=-20
O one
O two
an infinite number
O no solution

Answers

Answer:

Infinite number

Step-by-step explanation:

Check all of the functions that are odd.

f(x)=x3-x2

f(x)=x5-3x3+2x

f(x) = 4x + 9

f (x) = StartFraction 1 Over x EndFraction

Answers

I would have to say the second answer

Answer:

second and fourth

Step-by-step explanation:

answered the question

Miss Tillman wanted to cover a box and yellow paper if the box is 5 feet tall 5 feet wide and 4 feet long how much paper does she need

Answers

Answer:10

Step-by-step explanation:

Helpp!!

Instead of dividing $15.00 by 2 1/2, double both numbers and then find the quotient.

Answers

Answer:

6

Step-by-step explanation:

need this asapppp pleaseeeeeeeeeeeeeee

Answers

Answer:

D

Step-by-step explanation:

They both share a line/arm, and have the same vertex meaning they are exactly side by side like very close.

the Answer is c (the are opposite and equal) because they are opposite but they are equal

Is it possible for the line segments of a triangle to be 6 cm, 7 cm, and 12 cm in length?

Yes or No? And why?

Answers

Answer:

Yes because sum of 2 line segment is greater than the third side

Step-by-step explanation:

Does anyone know what 9x*3x/4 is?

Answers

Answer and Step-by-step explanation:

We are given the expression [tex]\frac{9x * 3x}{4}[/tex].

First, we need to multiply 9x by 3x. This results us with [tex]27x^2[/tex].

[tex]\frac{27x^2}{4}[/tex] -- This is the final expression simplified. There isn't anything else we can do this expression, as it is not factorable and can't be simplified any further.

#teamtrees #PAW (Plant And Water)

Evaluate the expression (1/3)^2

Answers

Answer:

1/9 :)

Step-by-step explanation:

use the power rule, square both numerator and denominator, 1^2 = 1 3^2 = 9

hope this helps!!!!

Choose the inequality that represents the following
graph.
+
-3
1
1
-5
-4
-2
-1
0
2
3
4
5

Answers

Answer:A

Step-by-step explanation:

The circle is open eliminating the equal to options, then look at the arrow, which is going negative showing x < 5



A recipe calls for 2 cups of milk for 8 pancakes. To use this recipe to make 16 pancakes, how many cups of mik are needed?

Answers

Answer:

4 CUPS OF MILK

Step-by-step explanation:

2 cups of milk=8 PANCAKES

2       X

8       16

16X2=32

32/8= 4

Find the value of x.

Answers

Answer:

x = 19 cm

Step-by-step explanation:

3+3+2+5+6 = 19

PLEASE HELPPPPPPPPPPP!!!!!!!!!!!

A set of Triangles are Shown. Select All The acute Triangles.

Answers

The answer is B&E✨✨✨✨✨✨✨

Shakira went bowling with her friends. She paid $3 to rent
shoes and then $4.75 for each game of bowling, if she spent a
total of $23, then how many games did Shakira bowl?
Wri
Did you solve using an equation or an inequality?
Explain why using the lines below.

Answers

Answer:

= # of games playing

4.75x + 3 = 42

4.75x = 39

x = 39 /4.75

x = 8.21

answer

Shakira played about 8 games

Step-by-step explanation:


Is the relationship linear, exponential, or neither?

Answers

the answer is linear

John’s Rectangle is _____ units long.

John’s Rectangle is _____ units wide.

The area of John’s rectangle is ____ units^2.

Answers

Answer:

John's rectangle is 4 units long

John's rectangle is [tex]3\frac{1}{2}[/tex] units long

The area of John's rectangle is 14 units^2

Step-by-step explanation:

A rectangle has four sides that comprise of two pairs of equal length sides

The side which is the longest side of a rectangle is known as the length, L, of the rectangle

The side which is the shortest side of a rectangle is known as the width, W of the rectangle

Based on the given measurement, the length of the given rectangle which is the length of longest side of the rectangle, which is the 4 units length side

Therefore;

∴ John's Rectangle is L = 4 units long

the width of the given rectangle which is the length of shortest side of the rectangle, which is the side with lengths 3 units and 1/2 units length side

∴ The length of the shortest side of the rectangle, W = 3 units + 1/2 units = 3 1/2 units

∴ John's rectangle is W = [tex]3\frac{1}{2}[/tex] units wide

The area of John's rectangle, A = L × W

∴ The area of John's rectangle, A = 4 units × [tex]3\frac{1}{2}[/tex] units = 14 units².

Find the value of cos 0 , If sec 0 = 3/2 0 < 90

Answers

Answer:

Step-by-step explanation:

cos theta is 2/3 because  cos means reciprocal of sec

Answer:

option C

Step-by-step explanation:

[tex]sec\theta = \frac{1}{cos\theta}\\\\\frac{3}{2}= \frac{1}{cos\theta}\\\\cos\theta = \frac{1}{\frac{3}{2}} = \frac{2}{3}[/tex]

help me asap please!!!!!

Answers

Answer:

It's C.

Step-by-step explanation:

The area of a triangle is base times height times 1/2. The base times the height of that triangle is 66. 66 times 1/2 is 33. So, the correct answer is C.

Answer:

66 cm

Step-by-step explanation

11cm x 6 cm= 66cm

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