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
dsp73
2 years ago
14

Solve the equation for x: 4x2 + 15x = 4 Show steps please

Mathematics
1 answer:
kotykmax [81]2 years ago
6 0
4 x 2 + 15x = 4
First multiply the 4 and 2
8 + 15x = 4
Next, subtract the 8 on both sides
15x = -4
x=3.75
You might be interested in
Plz help me with this :(
koban [17]

Answer:

m is equals to 49 degree + 31 degree so which means it's 80°

6 0
3 years ago
Ishaan is 222 times as old as Christopher. 353535 years ago, Ishaan was 777 times as old as Christopher.
klemol [59]
<h3><u>Question:</u></h3>

Ishaan is 2 times as old as Christopher. 35 years ago, Ishaan was 7 times as old as Christopher. How old is Christoper now?

<h3><u>Answer:</u></h3>

The present age of Christoper is 42 years old

<h3><u>Solution:</u></h3>

Given that Ishaan is 2 times as old as Christoper

Let the present age of Christoper be "x"

Then, Present age of Ishaan = 2 times as old as Christoper

present age of Ishaan = 2x

<em><u>35 years ago, Ishaan was 7 times as old as Christopher</u></em>

Age of Ishaan 35 years ago = Present age of Ishaan - 35

Age of Ishaan 35 years ago = 2x - 35

Similarly,

Age of christoper 35 years ago = Present age of christoper - 35

Age of christoper 35 years ago = x - 35

From given statement, 35 years ago, Ishaan was 7 times as old as Christopher

Age of Ishaan 35 years ago = 7 times the age of Christoper 35 years ago

(2x - 35) = 7(x - 35)

<em><u>Solve the above equation for "x"</u></em>

2x - 35 = 7x - 245

2x - 7x = -245 + 35

-5x = -210

<h3>x = 42</h3>

Thus present age of Christoper is 42 years old

5 0
3 years ago
The diagram shows a cone and its axis of rotation. If a plane passes through the axis of rotation, which type of cross section w
Akimi4 [234]
I belived it is A.Circle, but i am not for sure.
7 0
2 years ago
Read 2 more answers
A board is cut so that its length is changed from 8 feet to 6.5 feet. What is the percent of change in length? Round your answer
Schach [20]

it went from 8 to 6.5, namely 8 - 6.5 = 1.5.


if we take the 8 to be the 100%, what is 1.5 off of it in percentage?


\bf \begin{array}{ccll}amount&\%\\\cline{1-2}8&100\\1.5&x\end{array}\implies \cfrac{8}{1.5}=\cfrac{100}{x}\implies x=\cfrac{1.5\cdot 100}{8}\implies x=18.75


well, we can round that up to 18.8%, however since it's a subtraction from the board, we can say is -18.8%, a negative percent, because is a percent that was taken out of it.

3 0
2 years ago
Can someone please help me with this algebra
kykrilka [37]

Answer:

B

Step-by-step explanation:

Because i did this problem

8 0
3 years ago
Other questions:
  • Question 10 of 10<br> Which set of polar coordinates are plotted in the graph below?
    6·1 answer
  • Anybody know the answer to this?
    8·2 answers
  • Please help me
    5·1 answer
  • A Las Vegas handicapper can correctly predict the winning professional football team 70% of the time. The probability that she i
    9·1 answer
  • If a and b are both positive numbers and a values?
    14·1 answer
  • Can someone pls help me &amp;THANK YOU<br><br><br><br> SLATTTT!!!
    6·1 answer
  • √(4²+7²) PLS HELP WILL GIVE BRAINLIEST FOR QUICKEST AND CORRECT ANSWER!!!!
    8·2 answers
  • What's 2/3 written as a fraction with a denominator of 9?<br> A.2/9<br> B.3/9<br> C.6/9<br> D.9/9
    9·1 answer
  • What is the value of x in the triangle?
    10·1 answer
  • 2/3 x 4/5? or any other way of solving this
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!