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
Reika [66]
3 years ago
11

I need help on this problem please help me.

Mathematics
1 answer:
a_sh-v [17]3 years ago
3 0

Answer:

150 mL

Step-by-step explanation:

Let x represent the quantity of 75% solution needed. The total amount of alcohol in the 60% mixture will be ...

75%·x + 10%·45 = 60%·(x+45) . . . . . there will be x+45 mL of solution in the end

0.15x = 22.5 . . . . . . . . . . . . . . . . . . . . simplify, subtract .60x+4.5

22.5/0.15 = x = 150 . . . . . . . . . . . . . . mL of 75% solution needed

You will need 150 mL of the 75% solution.

You might be interested in
Can someone help me please and thank you
s344n2d4d5 [400]
Okay.
Well, first of all you need to know what an x-intercept is. 
It's the point of when the line crosses over the x-axis. For this, situation it crosses twice. An x-intercept written out is normally written out as (#, 0)
Out of that table you have two that apply to (#, 0)
(-6, 0) and (11,0)
the question is asking for a positive x-intercept. I'm guessing you know the difference. between negative and positive. but just in case, I'll use the number 5. As a positive: 5 As a negative: -5
So, you have -6 and 11.
the 6 is negative(-) the 11 is positive(+).
So your answer would be (11,0)

I hope this helped! :)
4 0
3 years ago
A food truck owner randomly samples 100 customers on two separate days to see what food items they bought. The data shows the re
svetlana [45]
Percentage of people who buy Burgers = 35+45/2 = 80/2 = 40

Total Number of people = 900

So, 900 * 40%

= 900 * 0.40

= 360

In short, Your Answer would be: 360 burgers

Hope this helps!
6 0
3 years ago
Read 2 more answers
Find the value of x. Round the length to the nearest tenth.
Mamont248 [21]
From right triangle trigonometry, we have the following:

\displaystyle{ tan(35^o)= \frac{opposite \ side }{adjacent \ side }, 


where the "opposite side" means the opposite side to angle with measure 35^o, and "adjacent side" means the adjacent side to angle with measure 35^o.

tan(35^o) is a constant which can be found using a calculator.

In the calculator of the pc press: view - scientific - 35 - tan.

 This gives tan(35^o)=0.7


Thus, back in the equation \displaystyle{ tan(35^o)= \frac{opposite \ side }{adjacent \ side } we substitute as follows and solve:


\displaystyle{0.7= \frac{x }{12 }\\\\

x=0.7\cdot12=8.4


Answer: 8.4 cm
5 0
3 years ago
Read 2 more answers
20 points!! Pls help
Studentka2010 [4]

Answer:

<h3>(-4, 1)</h3>

Step-by-step explanation:

-x-3=y, therefore x = -y-3

-3x - 8y = 4

Find the value of y

Substitute the x in -3x - 8y = 4 with -y-3

We get

-3·(-y-3) - 8y = 4

3y + 9 - 8y = 4

-5y = 4-9

-5y = -5

<h3>y = 1</h3>

_______________

Find the value of x

x = -y-3

x = -1-3

<h3>x = -4</h3>

_______________

Answer (x, y) =

<h3>(-4, 1)</h3>

_____________________

#IndonesianPride - kexcvi

5 0
3 years ago
Read 2 more answers
AB || DE. Calculate the value of angle x°.​
klemol [59]

Answer:

23 maybe because there is a 90 degree angle

7 0
3 years ago
Read 2 more answers
Other questions:
  • Is <br> Angel 1: 60 and angle 2: 30 a complementary angle
    15·2 answers
  • Write nine hundred and eight tenths as a decimal number.
    11·1 answer
  • The sum of three consecutive multiples of 2 is 18 .
    15·1 answer
  • what's 12 to the power of 28 (I tried to find the solution on a calculator and this is what i got could someone please elaborate
    12·1 answer
  • Simplify the following expressions. <br> ⅔ divided by -⅙
    6·1 answer
  • B and a win some money and share it in a ratio of 3:4 person b gets 39 how much does person a get?
    5·1 answer
  • Find the cube root of 8/125
    13·1 answer
  • PLS HELP ME!
    7·1 answer
  • Given that a = two and b = 3, what is the value of (ab)?
    7·1 answer
  • I will give a lot of points to help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!