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
Butoxors [25]
3 years ago
14

a landscaping company needs 160 gallons of 40% fertilize the shrubs in an office park. They have in stock 50% fertilizer and 30%

fertilizer. how much of each type should they mix together?​
Mathematics
1 answer:
Novay_Z [31]3 years ago
5 0

Let

x--------> volume of 50​% fertilizer

y--------> volume of 30% fertilizer

we know that

x+y=160-----> x=160-y-----> equation 1

x*0.5+y*0.3=160*0.4-----> equation 2

substitute equation 1 in equation 2

[160-y]*0.5+0.3*y=63.8----> 77-0.35*y+0.25*y=63.8

0.10*y=13.2------> y=13.2/0.10----> y=132 gal

x=220-y----> x=220-132----> x=88 gal

the answer is

88 gal of 50​% fertilizer

132 gal 30​% fertilizer

You might be interested in
What is the surface area of the regular pyramid given below?
yuradex [85]

For this case we have by definition, that the total surface area of a regular pyramid with a square base is given by:

SA = \frac {1} {2} p * S + A_ {b}

Where:

p: It is the perimeter of the base

S: It's the inclination

A_ {b}: It is the area of the base

Substituting:

A_ {b} = 7 ^ 2 = 49units ^ 2\\p = 7 + 7 + 7 + 7 = 28units\\S = 10units\\SA = \frac {1} {2} 28 * 10 + 49\\SA = 140 + 49\\SA = 189 \ units ^ 2

ANswer:

Option B

3 0
3 years ago
Prove that A is in the subset B if P(A) is in the subset P(B)
natima [27]
Show that if p(a) ⊂ p(b) then a ⊂ b. 

<span>I will assume p() means power set. </span>

<span>proof: let x∈a, then {x} ∈ p(a) and so by hypothesis {x} ∈ p(b). However {x} could not be in p(b) unless x∈b. This shows that each element of a is an element of b and hence a ⊂ b.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
5 0
3 years ago
Is <br><br> Y=-3/4x -2 <br> Y=3/4x+1 <br><br> One solution many solution or no solution
Mama L [17]
I’m not sure what I can do
8 0
3 years ago
Hellpmeh i kinda get it
RoseWind [281]

Answer:

1/2 or 50%

Step-by-step explanation:

5 are lower than 60

and 5 are =/> 60

4 0
3 years ago
Read 2 more answers
Drag the dots to plot (7 1/2, -2) (-3,7) and (2,0)
kirill115 [55]

Step-by-step explanation:

7 1/2 = 7 + 1/2 = 14/2 + 1/2 = 15/2 = 7.5

check the attached picture.

:)

4 0
3 years ago
Other questions:
  • Two sides of a triangle have the same length. The third side measures 4 m less than twice the common length. The perimeter of th
    10·1 answer
  • Use the equation y=7x+3 to determine the ordered pairs when x=2 and x=-1<br><br> please help ☹️
    12·1 answer
  • What is the solution to the equation below? 2(x - 3) = 2x 5?
    8·1 answer
  • Krystal's school is selling tickets to annual talent show.On the first day of the ticket sales the school sold 4 senior citizen
    13·1 answer
  • Zap’s car rental charges $15.00 an hour to rent a car.Easy car rental charges $8.50 an hour plus a rental fee of $25.50 per rent
    15·2 answers
  • Start at 125 create a pattern that subtracts 6 from each number
    14·1 answer
  • Solve x+1&gt;3. Graph the solution.
    9·1 answer
  • -x + 1 = x + 21<br><br>solve for x<br><br><br>I need this asap​
    13·2 answers
  • Please help me it one question and give explanation because a lot of people lie and make me get wrong:(
    13·1 answer
  • Please help with this math problem!! :)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!