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
viktelen [127]
3 years ago
12

How many gallons of a 70% antifreeze solution must be mixed with 90 gallons of 20% antifreeze to get a mixture that is 60% antif

reeze?
gallons
The number of gallons that must be mixed is
(Round to the nearest whole number.)
Mathematics
1 answer:
Oliga [24]3 years ago
8 0

Answer:

360

Step-by-step explanation:

If x is gallons of 70% antifreeze solution, then:

0.70x + 0.20(90) = 0.60(x + 90)

0.70x + 18 = 0.60x + 54

0.10x = 36

x = 360

You might be interested in
Jane moved into a flat with two other students. the rent was £540 per month altogether and the council tax worked at £216 each p
Delvig [45]
9873 - 9586 = 287 units used cost is 287 * 27.2 = 7806.4 p= 78.06 + standing charge of 12.40 
<span>
total gas 80.46 Jayne's share 26.16 (because they have to pay part of a penny, so round up) </span>
<span>electricity </span>
<span>3542 - 3187 = 355 units used cost 355 * 7.1 2520.5 p = 25.21 + standing charge of 9.10 </span>
<span>
total electricity 34.31 Jayne's share 11.44 (because they have to pay part of a penny, so round up) </span>
<span>Rent * 3 months = 540 * 3 = 1620 Jayne's share 1620 / 3 = 540 </span>
<span>
total cost 3 months for Jayne </span>
<span>540 + 11.44 + 26.16+ 54 = 631 pounds 60 pence</span>
4 0
3 years ago
A bakery has fixed costs for retail space, electricity, and appliances of $15,000. The variable cost of baking a cookie is $0.25
antoniya [11.8K]
15,000 + (400 * 12)(0.25) + 200(3.53) =
15,000 + 4800(0.25) + 706 =
15,706 + 1200 =
16906 <===
6 0
3 years ago
Two state parks, Elm Grove and Cathedral Rock, each recorded the number of visitors to the park each day for 15 days. The parks
ICE Princess25 [194]

Answer:

The degree of overlap between the two distributions is moderate.

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
5.Square Given:a =12m,A=<br>Pa help po​
bixtya [17]

If s=side, then each side is 12m.

It got cut off but

12mx12m=144m^2 because mxm=m^2.

heart if helpful

5 0
2 years ago
Identify the values of a , b , and c in the following quadratic equation.<br><br> 2 x2 + 3 x + 7 = 0
Liula [17]
Depends on where you are in the math book but this would be the most simple way.
n= number
sqar(-1) = i

8 0
3 years ago
Read 2 more answers
Other questions:
  • Graph the relation. is the relation a function? why or why not? {(0,1), (3,5), (2,2), (-1,4)}
    8·1 answer
  • If you can choose one scoop of ice cream and one topping, how many different sundaes can you make?
    10·2 answers
  • Use the expression 4s to find the perimeter of a square that has a side length of 7 centimeters.Show your work
    14·1 answer
  • Factor 4x2 + 24x + 36.
    9·1 answer
  • HELP ASAP. WILL GIVE BRAINLIEST! BEING TIMED!!!
    11·1 answer
  • Do your thing genius's.
    7·1 answer
  • +23-(-20)=43<br> how is that so?<br>Explanation included​
    13·1 answer
  • M&lt;1=(2x+28) and m&lt;3=(6x+4) what is m&lt;3
    15·1 answer
  • Find the lateral surface area and surface area of a cone with a base radius of 4cm and a slant height of 10cm.
    6·1 answer
  • A normal population has a mean u = 31 and standard deviation = 10. What proportion of the population is less than 30?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!