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
Neporo4naja [7]
3 years ago
5

3 posters cost $9.60. At this rate how many posters can you buy with $48

Mathematics
1 answer:
Ksju [112]3 years ago
3 0
About 15 because 9 times 5 = 45 reminder 3 than you add 3 times 5 = 15
You might be interested in
I hope its bigger so u can seeeeeeeeeee!!!
Nata [24]

Answers:

Gabe needs 30 liters of the 50% solution

Gabe needs 30 liters of the 70% solution

Both answers are 30

==================================

Explanation:

We have two beakers, each of which we don't know how much is inside. Let's call this x and y

x = amount of liquid in the first beaker (water+acid)

y = amount of liquid in the second beaker (water+acid)

We're told that the beakers have a 50% solution and a 70% solution of acid. This means that the first beaker has 0.5*x liters of pure acid, and the second beaker has 0.7*y liters of pure acid. In total, there is 0.5x+0.7y liters of pure acid when we combine the two beakers. This is out of x+y = 60 liters total, which we can solve for y to get y = 60-x. We will use y = 60-x later on when it comes to the substitution step

We can divide the total amount of pure acid (0.5x+0.7y liters) over the total amount of solution (x+y = 60) to get the following

(0.5x+0.7y)/(x+y) = (0.5x+0.7y)/60

We want this to be equal to 0.6 because Gabe wants a 60% solution when everything is said and done, so

(0.5x+0.7y)/60 = 0.60

0.5x+0.7y = 0.60*60 .... multiply both sides by 60

0.5x+0.7y = 36

0.5x+0.7( y ) = 36

0.5x+0.7(60-x) = 36 ........ replace y with 60-x (substitution step)

0.5x+0.7(60)+0.7(-x) = 36 .... distribute

0.5x+42-0.7x = 36

-0.2x+42 = 36

-0.2x = 36-42 .... subtract 42 from both sides

-0.2x = -6

x = -6/(-0.2) .... divide both sides by -0.2

x = 30

He needs 30 liters of the 50% solution

Use this x value to find y

y = 60-x

y = 60-30

y = 30

So he needs 30 liters of the 70% solution


3 0
3 years ago
What is the theoretical Probability of spinning a 3?
puteri [66]

Answer:

35%

Step-by-step explanation:

5 0
3 years ago
What is 2 5/12 - 1 7/12 =
castortr0y [4]

Answer:

Divide: 7/12  : 3/10  = 7/12  · 10/3= 7 · 10  /12 · 3  = 70/36  = 35/18

To divide one fraction by another, invert (turn upside-down) the second fraction, then multiply.

Hope this helps:)sorry if it doesnt

4 0
3 years ago
The sum of three consecutive even numbers is 48. What is the smallest of these numbers?
SVETLANKA909090 [29]

Answer: The numbers are 14, 16 and 18.

Step-by-step explanation: First thing to note is that consecutive even numbers have a difference of 2 units between every two terms. That is, if the first number is a, the next would be a + 2, and the next would be a + 4, and so on.

Therefore the three consecutive even numbers shall be a, a + 2, and a + 4.

Our equation now becomes;

a + a + 2 + a + 4 = 48

3a + 6 = 48

Subtract 6 from both sides of the equation

3a = 42

Divide both sides of the equation by 3

a = 14

Therefore, the numbers are 14, 16 and 18.

4 0
3 years ago
Read 2 more answers
Which of these is a unit rate. $3 for 3 hot dogs, $5 for a case of soda, $16 for 2 movie tickets, $8 for 6 cupcakes
blondinia [14]
$5 for a case of soda
5 0
3 years ago
Read 2 more answers
Other questions:
  • Find the distance between the points given. (3, 4) and (4, 7) √(10) 3 2√2
    5·1 answer
  • Rachel spent $38 for dinner. This was $10 less than 3 times what she spent for a movie. How much was the movie?
    6·1 answer
  • Who is the person who invented math
    8·1 answer
  • The hole for a footing needs to be 8 ft deep. If it is currently 1 ft 5 inch deep how much deeper does it need to be dug? Give t
    10·2 answers
  • What are the disadvantages of driverless cars? Check all that apply.​
    15·1 answer
  • PLEASE HELP! URGENT<br><br> Help with 6 &amp; 7 please! Leave a explanation. Thanks :)
    7·2 answers
  • What is the number 1,000 less than 28,648
    12·2 answers
  • F=(2xy +z³)i + x³j + 3xz²k find a scalar potential and work done in moving an object in the field from (1,-2,1) to (3,1,4)​
    15·1 answer
  • А
    15·2 answers
  •  It cost 199 for24 bottles of water what is the unit rate per bottle
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!