Mathematics High School

In the diagram below of triangle ABC, DE is parallel to AC. IF AD = 20, DB = 10 and AC = 33, find DE.

Answers

Answer 1

Answer:

Step-by-step explanation:

It's proportions my son.

x / 33 = 10 / 30

It's 10/ 30 because the whole BA is 30 in total

Then cross multiply.

30x = 330

x = 11

Related Questions

15. Write the first four terms of the sequence:
a. f(n) = −2[tex]n^{2}[/tex] + 4
b. f (1) = 7, f(n)= −4 ∙ f(n-1) − 1 + 15

Answers

Answer:

16 17

Step-by-step explanation:

In a survey, 27% of the people chose salads over a meat dish. In all, 81 people chose salads. How many people were in the survey?

Answers

Answer:

300

Step-by-step explanation:

Let x be the number of people in the survey

81/x = 27%

81/x = 0.27

x = 81/0.27

x = 300

I WILL GIVE YOU BRAINLY PLSS

2.2x – 3.408 ≥ 29.504
A. x ≤ 12
B. x ≥ 12
C. x ≥ 14.96
D. x ≤ 14.96

PLSS SHOW YOUR WORK PLSS

Answers

Answer:

Step-by-step explanation:

What is the difference of the fractions? Use the number line to help find the answer.
LE
13
54
|
1
16
18
120
14
120
to
다.
-
0
11
10
10
20 20
20 20 2020
x
20
0

Answers

Answer:

Option 'b' i.e. -11/20 is the correct option.

Thus,

[tex]\frac{1}{5}-\frac{3}{4}=-\frac{11}{20}[/tex]

Step-by-step explanation:

Given the expression

[tex]\frac{1}{5}-\frac{3}{4}[/tex]

Determining the difference of the fractions

[tex]\frac{1}{5}-\frac{3}{4}[/tex]

The Least Common Multiplier of 5, 4 is 20. Thus, adjust the fractions based on the L.C.M.

[tex]\frac{1}{5}-\frac{3}{4}=\frac{4}{20}-\frac{15}{20}[/tex]

Apply the fraction rule: [tex]\frac{a}{c}-\frac{b}{c}=\frac{a-b}{c}[/tex]

[tex]=\frac{4-15}{20}[/tex]

Add the number: 4-15 = -11

[tex]=\frac{-11}{20}[/tex]

Apply the fraction rule: [tex]\frac{-a}{b}=-\frac{a}{b}[/tex]

[tex]=-\frac{11}{20}[/tex]

Please check the attached figure, where the pointing-down arrow is representing the correct answer which is -11/20.

Therefore, option 'b' i.e. -11/20 is the correct option.

Thus,

[tex]\frac{1}{5}-\frac{3}{4}=-\frac{11}{20}[/tex]

Please help..

Give a example of force applied to an object that dies not change the objects's velocity.

Answers

Answer:

friction

Step-by-step explanation:

Consider an object that's not moving, like a chair at rest on the floor. There are two forces acting on it:

• its own weight, pulling it downward

• the normal force, i.e. the floor pushing upward on the chair.

Both of these forces are non-vanishing, but the net force is 0, so the chair remains at rest and its velocity stays at 0.

Giving Brainliest/Correct Answer/MATH

Answers

what’s the question??

Which expression can be used to find the retail price of an item that was bought at wholesale for $112 and sold at a 40% markup?

Answers

Answer:

Your answer is D or $112 + 0.40($112)

Explanation:

I got it right on edge 2021

Dimas is playing a game that uses a number cube. The sides of the cube are labeled from 1 to 6. Dimas wants to roll a 2 or 3. He rolls the number cube one time

Answers

Answer:

B. 1/3

Step-by-step explanation:

The total number of sides in the cube are 6 (1,2,3,4,5,6). If Dimas only wants to roll either a 2 or 3 then that would mean that he has 2 chances out of the total 6 probable outcomes to roll one of those numbers. Therefore, in order to find the probability of this happening in a single roll we need to divide the number of times that his two choices appear on the dice by the total number of sides the dice has, like so...

2 / 6 = x

If we simplify it would give us [tex]\frac{1}{3}[/tex]

A collector has 100 movie posters and 80 band posters. She wants to sell 30 movie posters but still have her poster collection maintain the same ratio of 100:80. If she sells 30 movie posters, how many band posters should she sell? Complete the explanation to find out how many band posters she should sell.

Answers

Answer: 24 band posters should be sold

Step-by-step explanation:

First take the expression down to its simplest form;

= 5:4

Assume she sells 30 movie posters, her movies posters drop to;

= 100 - 30

= 70 movie posters

We need a number of band posters remaining that will give a ratio of 5:4 with movie posters.

In fraction form, the number of movie posters is;

= 5/9 because 9 would be the total number of both movie posters and band posters.

Create an expression to find the total number of posters if 70 are movie posters;

5/9x = 70

x = 70 ÷ 5/9

x = 126 posters

Number of band posters that should be left are;

= 126 - 70

= 56

Number of band posters that should be sold;

= 80 - 56

= 24 posters

The new ratio would be 70:56.

3.6 - 2 - 3 = 4x - 8
please helppp

Answers

Answer:

x=1.65

Step-by-step explanation:

First switch sides

4x-8=3.6-2-3

Then subtract 3.6 - 2 - 3

4x-8=-1.4

Add 8 to both sides

4x-8+8=-1.4+8

simplify

4x=6.6

Divide both sides by 4

4x/4 - 6.6/4

The simplify again

x=1.65

A like with a positive slope is parallel to one of the lines shown. What is its slope? Use the graph shown below. The slope is:

Answers

Answer:

The first line (blue) has a slope of 2/3x The slope of the second line is decreasing and hence has a slope of -3xRate positively and give brainlist

-5x²y²z + 7xy - x²y²z - 5xy

Answers

The answer is -6x^2 y^2 z+ 2xy.

Answer:

-5x²y²z + 7xy - x²y²z - 5xy

Answer:

Step-by-step explanation:

C equals x^2 plus 8x

Solve for x
Y= x-v/b

Answers

Answer:

x=y+v/b

Step-by-step explanation:

So first you have y=x-v/b. You want to isolate x, so subtract x from both sides. You'll get -x+y=-v/b. Next, you're going to want to subtract y to further isolate x now that it's on the left side. Now you'll have -x=-y-v/b. But you don't want x to be negative, so you can divide both sides by -1 to make x positive. Now you'll have x=y+v/b.

The Pine Apple Store found that 18% of their weekly customers would purchase a new R-phone before leaving the store. If this was equivalent to 63 customers, how many total people entered the store last week?

Answers

Answer:

350 customers

Step-by-step explanation:

Since this is a ratio question and we only have variable that we need to solve (total people that entered last week), Then we can use the Rule of Three to solve this problem. We do this by multiplying the diagonal values of the following model and dividing by the third value in order to find the variable, like so...

18% of customers <====> 63 customers

100% of customers <====> x customers

(100 * 63) / 18 = x

6,300 / 18 = x

350 = x

Finally, we can see that a total of 350 customers entered the store last week.

Heres a graph of a linear function. Write the equation that describes that function.

Answers

Answer:

Y=[tex]\frac{1}{3}[/tex]X-4

Step-by-step explanation:

Using the slope-intercept equation, a line is given as y=mx+b, where m represents the slope and b represents the y-intercept. From this graph, we can see that the slope is 1/3 and this line meets the y-axis at -4.

Thus, using that information, we substitute this into the equation to get

y= (1/3)x - 4

A group of friends were working on a student film. They spent $546 on props,
which was 39% of their total budget. What was the total budget for their
student film?

Answers

Answer:

Spent=$546

Budget=100%

=39/100*546

1+1=???? PLEASE HELP ILL MARK BRAINLIEST

Answers

Answer:

The answer to your extremely difficult question is 2.

Step-by-step explanation:

I hope this helps!!!! Please Mark me Brainliest!!!

Answer:

UMMMMM THIS IS HARD WAIT THIS TAKES ALOT OF THINKING

ITS 11

Step-by-step explanation:

U putt 2 ones together to get 11

big brain

A singer and a producer each wrote songs for an upcoming album. The singer wrote 6 fewer than twice the number of songs that the producer wrote. They wrote a total of 54 songs. How many songs did the singer and producer wrote?

Answers

Answer:

The producer wrote 20 songs

The Singer wrote 34 songs

Step-by-step explanation:

Let

Number of songs the producer wrote = x

Number of songs the singer wrote = 2x - 6

Total songs written by singer and the producer = 54

54 = x + (2x - 6)

54 = x + 2x - 6

54 + 6 = 3x

60 = 3x

Divide both sides by 3

x = 60/3

= 20

x = 20 songs

Number of songs the producer wrote = x = 20 songs

Number of songs the singer wrote = 2x - 6

= 2(20) - 6

= 40 - 6

= 34 songs

The producer wrote 20 songs

Answer:

45 words in 9 minutes

Step-by-step explanation:

90/18= 5 words per minutes

5*9= 45

Which expression below represents "the sum of a number, m and two?" *
5 points

Answers

Answer:

Step-by-don't know step explanation:

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In the diagram below of triangle ABC, DE is parallel to AC. IF AD = 20, DB = 10 and AC = 33, find DE.​

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In the diagram below of triangle ABC, DE is parallel to AC. IF AD = 20, DB = 10 and AC = 33, find DE.