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
mr Goodwill [35]
3 years ago
8

A 20% solution of fertilizer is to be mixed with a 50% solution of fertilizer in order to get 180 gallons of a 40% solution. How

many gallons of the 20% solution and 50%
solution should be mixed?
Mathematics
1 answer:
anyanavicka [17]3 years ago
4 0

Answer: 60 gallons of the 20% solution and 120 gallons of the 50% solution should be mixed.

Step-by-step explanation:

Let x represent the number of gallons of 20% solution that should be mixed.

Let y represent the number of gallons of 50% solution that should be mixed.

A 20% solution of fertilizer is to be mixed with a 50% solution of fertilizer in order to get 180 gallons of a 40% solution. This means that

0.2x + 0.5y = 0.4×180

0.2x + 0.5y = 72- - - - - - - - - - - -1

Since the total number of gallons is 180, it means that

x + y = 180

Substituting x = 180 - y into equation 1, it becomes

0.2(180 - y) + 0.5y = 72

36 - 0.2y + 0.5y = 72

- 0.2y + 0.5y = 72 - 36

0.3y = 36

y = 36/0.3

y = 120

x = 180 - y = 180 - 120

x = 60

You might be interested in
Suppose you construct lines L, M, and N so that L is perpendicular to M and L is parallel to N. which of the following is true.
Blizzard [7]

In the question we are given three lines L,M and N such that:

Line L is perpendicular to M

and line L is parallel to line N

so the option is (C) M is perpendicular N

Step-by-step explanation

We are given three lines L,M and N such that:

  • Line L is perpendicular to M
  • Line L is parallel to line N

<u>We know that when one line parallel to the second line and is perpendicular to the third line then the second line is also perpendicular to the third line.</u>

<u></u>

So,the answer is  (C) M is perpendicular N

3 0
3 years ago
A field is 3645 feet long.<br><br> What is the length of the field in yards?
Ilya [14]

Answer:

answer of this question is 12150

8 0
2 years ago
The solution of -2x + 13 &lt;9 is
Karo-lina-s [1.5K]
Inequality form: x > 2
Interval notation: (2, ∞ )
8 0
3 years ago
What is the value of f(3) in the function below? F(x) = 2x
Citrus2011 [14]

Answer:

substitute x as 3

Step-by-step explanation:

f (3)=2x

=2×3

=6

7 0
3 years ago
Read 2 more answers
What is 84/5 divided by 4 =
dangina [55]

THe answer is, 21/5

And in decemal form it will be, 4.2

5 0
3 years ago
Other questions:
  • I need answers for 1 , 2, 4​
    11·1 answer
  • Why does it make sense in this situation that the
    5·1 answer
  • The following quadratic function. find the zeros
    13·1 answer
  • In geometry every single term must be defined
    13·1 answer
  • A cookie recipe calls for 2 tablespoons of sugar and 6 tablespoons of flour.If mom puts 5 tablespoons of sugar,how many tablespo
    14·1 answer
  • Please answer these 2 questions
    12·2 answers
  • On a baseball field, the pitcher's mound is 60.5 feet from home plate. During practice, a batter hits a ball 226 feet at an angl
    9·1 answer
  • Which expression is equivalent to –6x3 • x • y2 • y6?
    9·1 answer
  • What is a reflex?
    15·2 answers
  • R144 for 12 tickets.how much per ticket?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!