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
Lostsunrise [7]
3 years ago
7

how many gallons of a 70 acid solution must be mixed with a 3 gal. of a 30% acid solution to make a 55% solution?

Mathematics
1 answer:
zhenek [66]3 years ago
3 0

Answer:

You would need 5 gallons of a 70% solution

Step-by-step explanation:

You can always use proportions to answer these types of questions.

The numerator will be the amount of acid and the denominator will be the amount of solution

30% of 3 gallons is 0.9.

\frac{0.9+\frac{7G}{10} }{3+G} =.55\\0.9 + .7G = 1.65 + .55G\\.15G = .75\\G=5

You might be interested in
What is the image point of (0,1) after the transformation D4 R90?<br> Please and thank you
Ede4ka [16]

Answer:

Image point → (-4, 0)

Step-by-step explanation:

Coordinate of a point → (0, 1)

Rule for the transformation has been given as,

D₄ o R₉₀

First use R₉₀ → Rotation of the point by 90° counterclockwise

Rule for the rotation of a point (x, y) by 90° counterclockwise about the origin,

(x, y) → (-y, x)

(0, 1) → (-1, 0)

Further use D₄ → Dilation of the point by a scale factor of 4 about the origin

If a point (x, y) is dilated by a scale factor 'k' about the origin rule for the dilation is,

(x, y) → (kx, ky)

By applying this rule,

(-1, 0) → (-4, 0)

Therefore, image point will be → (-4, 0)

5 0
3 years ago
2. The value of x + x(x^x) when x = 2 is:
Levart [38]

Answer:

(a) 10.

Step-by-step explanation:

When  x = 2  x + x(x^x)  =

2 + 2(2^2)

= 2 + 2*4

= 2 + 8

= 10.

4 0
3 years ago
Read 2 more answers
Which expression is equal to (2x − 2)(3x – 3)?
Tanzania [10]

Answer:

6x^2-12x+6

Step-by-step explanation:

(2x-2)(3x-3)

6x^2-6x-6x+6

6x^2-12x+6

8 0
4 years ago
jesse bought 2 sheets of stamps. on each sheet there are 5 rows of stamps with 6 stamps in each row. how much did he buy.
lana [24]

Answer:

he bought 60 stamps

Step-by-step explanation:

6*5=30

30*2=60

5 0
3 years ago
The total amount, a, in dollars, that Mitra earns is a = 14.6h, where h is the number of hours that she works. What is the const
lesantik [10]
14.6 is the constant because no matter how many hours she will work (that number could change) it will always be a linear growth of 14.6.
7 0
4 years ago
Read 2 more answers
Other questions:
  • On January 1, the balance in your account in $800. On July 1, you deposit $250. Your bank pays 5.8% interest. Calculate the amou
    8·1 answer
  • adult tickets to a play cost $22. tickets for children cost $15. tickets for a group of 11 people cost a total of $228. write an
    15·2 answers
  • Answer this question showing all your work .<br> 24 plus 24
    11·1 answer
  • 8-3(6-6x) please help
    7·2 answers
  • HELPPPP PLZZZzzzzzzzz
    15·1 answer
  • The area of a rectangle is 40 meters. One of the sides is 10 meters. What are the measurements, in meters, of the
    7·1 answer
  • Find the value of x<br> 48°<br> 132°<br> 132°<br> X°
    14·1 answer
  • A bread recipe calls for 1/3 cup of white flour and 5 1/3 cups of whole wheat flour. How much flour do I need in total of my rec
    10·1 answer
  • HURRRY TIME LIMIT!!!!!!!!!
    9·1 answer
  • Find the value of p when p = 2q +4r when q = -4 and r = 5
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!