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
nataly862011 [7]
3 years ago
11

How much alfalfa does Helmut need to add to 30L of ostrich pellets to make a feed mix that is 40% alfalfa by volume?

Mathematics
1 answer:
Nutka1998 [239]3 years ago
8 0

Answer:

  a = 20 . . . . liters

Step-by-step explanation:

To solve this, multiply the equation by 30+a:

  a = 0.4(30 +a)

  a = 12 + 0.4a . . . . . eliminate parentheses

  0.6a = 12 . . . . . . . . subtract 0.4a

  a = 12/0.6 = 20 . . . divide by the coefficient of a

20 L of alfalfa must be added

_____

<em>Check</em>

  20/(30+20) = 20/50 = 40/100 = 0.4 . . . . . . answer checks OK

You might be interested in
Consider the diagram and proof by contradiction.
uranmaximum [27]
The Angle-Side Relationships theorem (or triangle parts relationship theorem) states that<span> if one side of a triangle is longer than another side, then the angle opposite the longer side will have a greater degree measure than the angle opposite the shorter side.

The converse to the </span>Angle-Side Relationships theorem (or triangle parts relationship theorem) states that if one angle of a triangle has a greater degree measure than another angle, then the side opposite the greater angle will be longer than the side opposite the smaller angle.

Thus, from the proof if AB > AC, then m∠C > m∠B by the <span>converse of the triangle parts relationship theorem</span>.

5 0
3 years ago
Read 2 more answers
Give your own example of an irrational number and explain why the number you chose is irrational
marishachu [46]
Definition
An irrational number is a number that cannot be expressed in as a fraction. It has decimal expression that does not terminate.

An example will be √2.

Reason:
(1) √2 cannot be expressed as a fraction form
(2) √2 has decimals that does not terminate

3 0
3 years ago
Can you help me with this, please? ​
Taya2010 [7]

Answer:

15 ^{4} is \: correct \: option \:

3 0
3 years ago
Read 2 more answers
Simplify the expression by combining like terms.<br> 7.2(x + 3) + 4(x - 3)
siniylev [52]

Answer: 11.2x -9.6

Step-by-step explanation:

7.2(x + 3) + 4(x - 3) -  12       - 7.2* (x + 3) + + 4*(x - 3) then

7.2x + 21.6 + 4x -  12  - Combining like terms 7.2x+ 4x  and numbers + 21.6-  12          

7.2x + 4x +21.6 -12       Then we have

11.2x -9.6

3 0
3 years ago
I asked, and someone made a response, not a math response.
vovikov84 [41]

herp derp herp derp herp derp

8 0
3 years ago
Other questions:
  • An isosceles trapezoid has a perimeter of 33 feet. Its shorter base measures 5 feet and its longer base measures 6 feet. The two
    8·1 answer
  • Need help with this
    7·1 answer
  • A fish dives into a depth of -3/4 mile below the surface of the water. A turtle's depth is 1/3 as deep as the fish's depth. What
    9·1 answer
  • The average score on a biology test was 72.1 write the average score using a fraction
    9·1 answer
  • I WILL GIVE YOU A COOKIE IF YOU ANSWER THIS QUESTION CORRECTLY!!!
    10·1 answer
  • What is the value of the function when x = –4?
    6·1 answer
  • Trevor’s science class is studying rainfall on the first day of every month for one year. Explain why this would not represent t
    5·2 answers
  • Function f(x) has a jump discontinuity at x = 8. Which statement identifies possible one-sided limits at x = 8?
    11·2 answers
  • 4a 3b - C<br> per a - 3;<br> b = -1;<br> 1; C = -2
    11·1 answer
  • Find the other endpoint of a segment on a coordinate plane when one endpoint is (5, 7) and the midpoint is (-2, -1).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!