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
mestny [16]
3 years ago
7

Suppose 12 quarts of pure antifreeze is mixed with 8 quarts of a solution that is 72% antifreeze. Answer the questions below. Do

not do any rounding.
(a) How many quarts of antifreeze are in the resulting mixture? quarts
(b) What percentage of the resulting mixture is antifreeze? %
Mathematics
1 answer:
ra1l [238]3 years ago
4 0
(a)  

12+0.72(8)

12+5.76

17.76 qts of antifreeze

(b)

100(12+8(.72))/(12+8)

100(12+5.76)/20

100(17.76)/20

5(17.76)

88.8%
You might be interested in
Free Points!!....what is the best restaurant
Rainbow [258]

Answer:

ummmmm panda express ig

Step-by-step explanation:

im just in the mood for chinese food rn lol

5 0
3 years ago
Read 2 more answers
Hi :), im really struggling with this. Just wanted to know if anyone can explain step by step for me please. Id really appreciat
Dvinal [7]

Answer:

314 m²

Step-by-step explanation:

the formula for the surface area of a sphere (As) is

As = 4×pi×r²

the radius r (half of the diameter) is clearly indicated as 5m.

so, As = 4×3.14×5² = 4×3.14×25

I don't even need a calculator for this, as 4×25 = 100

so, As = 100×3.14 = 314

(you know, when multiplying by 10, the decimal point moves right one position. multiply by 100 it moves 2 positions, and so on).

7 0
2 years ago
Which of the following examples illustrates ordinal numbers?
Margaret [11]

Answer:

30-5×2 of 3+(19-3) ÷8

Step-by-step explanation:

30-5×6+(19-3)÷8

30-5×6+16÷8

30-30+8

38-30

8

6 0
2 years ago
Solve for y.<br> y y<br> —— = ——<br> P-9 P+9
Veronika [31]

9514 1404 393

Answer:

  y = 0

Step-by-step explanation:

Subtracting the right side gives ...

  \dfrac{y}{P-9}-\dfrac{y}{P+9}=0\\\\y\left(\dfrac{(P+9)-(P-9)}{P^2-81}\right)=0\\\\y\left(\dfrac{18}{P^2-81}\right)=0\\\\\boxed{y=0}

The factor multiplying y cannot be zero, so y must be zero.

5 0
3 years ago
A circle has a radius of 3. An arc in this circle has a central angle of 20°. What is the length of the arc? Either enter an exa
Semenov [28]

Answer:

\frac{\pi  }{3}

2 * \pi * 3  * \frac{20}{360}

120\pi/360 = \frac{\pi  }{3}

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • What is 56/74 in simplest form?
    10·1 answer
  • Can anyone gekonme non
    9·2 answers
  • How can you describe the solution set of the equation 16x2 - 8x + 1 = 0?
    10·2 answers
  • A 2.0 kg cart moving right at 5.0 on a frictionless track collides with a 3.0 kg cart initially at rest. The 2.0 kg
    15·1 answer
  • Really Need Help Quick Please! Must turn this in . Please show work. Brainliest answer will be awarded to quickest, correct answ
    7·1 answer
  • How much larger is the 9 in 92,026 than 954?
    7·1 answer
  • Triangle D E F is shown. Angle D E F is a right angle. The length of hypotenuse DF is 13, the length of E F is 5, and the length
    13·1 answer
  • What does x equal 3.25-2.5= -9.75+4
    15·1 answer
  • Which of the following is the scientific notation for the number 0.00001526?
    5·1 answer
  • Subtract-X2 + 9x -- 6 from 4x + 8 plz explain​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!