1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DIA [1.3K]
3 years ago
11

The triangles are similar.

Mathematics
2 answers:
MrMuchimi3 years ago
7 0
25/5 = 5
and also 
15/3 = 5
so
(3x+ 8)/5 = 4
3x + 8 = 20
3x = 12
  x = 12/3
  x = 4

answer is x = 4
Igoryamba3 years ago
6 0
3x + 8 = 4 * 5 = 20
x = 4
You might be interested in
What is 1/2k-3=2-3/4K
laiz [17]

Answer:

1/2k-3=2-3/4k

1/2k+3/4k=2+3

1.25k=5

1.25k/1.25=5/1.25

k=4

4 0
2 years ago
Can someone tell me if im right? PLEASE DONT JUST SAY YES if you don’t know
tia_tia [17]

Answer: You are incorrect, the slope is correct, but the actual y-intercept is 205 ft.

Then the equation is:

y = (-15 ft/min)*x + 205 ft

Step-by-step explanation:

Ok, let's solve this.

We know that water is drained from a reservoir, let's assume that we can model this situation with a linear relation:

y = a*x + b

Where x is time, y is the height of the water in the reservoir, a is the slope (in this case represents how much changes the height of the water in the reservoir in one unit of time) and b is the initial height of the water in the reservoir.

We know that for a line that passes through the points (x₁, y₁) and (x₂, y₂) the slope is:

a = (y₂ - y₁)/(x₂ - x₁)

For this particular case we know that after 2 minutes the height of the water is 175 ft, then we have the point (2 min, 175 ft)

and after 5 minutes (so 7 minutes in total), the height of the water is 100ft, then: (7 ft, 100ft)

Then the slope of this:

a = (100 ft - 175 ft)/(7 min - 2 min) = (-75ft/5min) = - 15 ft/min

Then our line is something like:

y = (-15ft/min)*x + b

To find the value of b, we can use the fact that when x = 2 min, y = 175 ft

So if we replace these two values in the equation we get:

175ft = (-15 ft/min)*2 min + b

175 ft = -30 ft + b

175 ft + 30 ft = b                  

(here is your problem, it seems like you subtracted instead of adding in this part)

205 ft = b

Then the equation is:

y = (-15 ft/min)*x + 205 ft

So you are incorrect (but only for a little bit), you computed wrong the y-intercept.

3 0
3 years ago
I need help ASAP it's being timed oh and I need you to show your work! I'll give brainliest!!!
xxMikexx [17]

47

124

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
He first three terms of a geometric sequence are as follows. 10 , 30 , 90 find the next two terms of this sequence.+
ankoles [38]
10*3=30
30*3=90
90*3=270
270*3=810

or

10*3^1=30
10*3^2=90
10*3^3=270
10*3^4=810

the next two terms of this sequence are 270 and 810.
4 0
3 years ago
Solve for f<br><br> d=16ef^2
vitfil [10]

Here are a bunch of CORRECT answers. Your answer is in the first pic. I got number 3 wrong, but it still showed the correct answer.

6 0
3 years ago
Other questions:
  • I need helpppppppppppppo
    7·1 answer
  • From a survey of coworkers you find that 32​% of 150 have already received this​ year's flu vaccine. An approximate 98​% confide
    15·1 answer
  • A hair cut cost $25 and you want to leave a 15% tip what is the total bill?
    5·2 answers
  • Help me. I don't understand. Please help me find X and IK
    15·1 answer
  • Determine the slope of the following graph.
    9·1 answer
  • A bag contains:
    9·1 answer
  • Help<br><img src="https://tex.z-dn.net/?f=help%20%5C%3A%20meh%20%5C%3A%20ps" id="TexFormula1" title="help \: meh \: ps" alt="hel
    8·1 answer
  • Find the area of the shaded region <br><br> A. 4.421<br> B. 3.982<br> C.4.215<br> D. 3.769
    13·1 answer
  • Help im stuck and my pullcrap ahh teacher not her to help and she got me do ixls
    9·1 answer
  • Use cramer's rule of x-3y+z=13,3x+2y-z=1,5x+7y+2z=9​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!