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
Lerok [7]
3 years ago
5

HELP ME ASAP!!!!!!!!!!

Mathematics
1 answer:
gtnhenbr [62]3 years ago
7 0

Answer:

Step-by-step explanation:

Part A: 15

Part B: $125

You might be interested in
Morgan is trying to complete the square. What number should she put in the blank?
marysya [2.9K]

Answer:

C. 81

Step-by-step explanation:

x^2-18x+81

(x-9)(x-9)

3 0
2 years ago
A pharmaceutical company claimed that experiments showed that its drug could effectively reduce the growth of cancer cells by 35
NikAS [45]

Answer: The answer would be D: The labs were unable to reproduce the pharmaceutic

Step-by-step explanation: I just took the quiz on Edge, I hope this helps! :)

5 0
3 years ago
Read 2 more answers
to arrive at 2000 liters of 60% saline solution the attendant has to mix a 90% and a 40% saline solution. How many liters of eac
CaHeK987 [17]

Answer:

<u>800 liters</u> of 90% saline solution and <u>1200 liters</u> of 40% saline solution should be used.

Step-by-step explanation:

Given:

At 2000 liters of 60% saline solution the attendant has to mix a 90% and a 40% saline solution.

Now, to find the number of liters of saline solution each should be used.

<u><em>Let the liters of 90% saline solution mix be </em></u>x.<u><em /></u>

<u><em>And let the liters of 40% saline solution mix be</em></u> y.

So, the total number of liters:

x+y=2000.

y=2000-x\ \ \ ....(1)

Now, the total percentage of saline solution:

90\%\ of\ x+40\%\ of\ y=60\%\ of\ 2000

\frac{90}{100}\times x+\frac{40}{100}\times y=\frac{60}{100}\times 2000

0.9x+0.4y=1200

Substituting the value of y from equation (1) we get:

0.9x+0.4(2000-x)=1200

0.9x+800-0.4x=1200

0.5x+800=1200

Subtracting both sides by 800 we get:

0.5x=400

Dividing both sides by 0.5 we get:

x=800.

<u>The liters of 90% saline solution mix = 800.</u>

Now, substituting the value of x in equation (1) to get the liters of 40% saline solution:

y=2000-x

y=2000-800

y=1200.

<u>Thus, the liters of 40% saline solution = 1200.</u>

Therefore, 800 liters of 90% saline solution and 1200 liters of 40% saline solution should be used.

8 0
3 years ago
Help!! 3820 divided by 5
Mnenie [13.5K]

Answer: 764


Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
1. Work in small groups. Perform the experiment described in Sample 1.
zavuch27 [327]

Answer: 12.6

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Please help question #14!!!
    5·1 answer
  • Fred begins walking toward johns house at 3 miles per hour. John leaves his house at the same time and walks towards Fred’s hous
    9·1 answer
  • Which number between 41 and 50 has more than 5 factors and is a multiply of 1
    9·2 answers
  • What is the solution to the equation 5 (x minus 6) = 2 (x + 3)?
    15·2 answers
  • Joey has 24 coins in his pocket, the coins are all nickles and dimes. the total value of the coins is 1.85. how many dimes does
    11·1 answer
  • Lily swims for 5 hours in stream that has a current of 1 mph. She leaves her dock, swims upstream for 2 miles and then swim back
    5·1 answer
  • Help I am stuck on this.
    9·1 answer
  • 1/2+3/8=<br> .............………
    13·2 answers
  • Which of the following best describes the graph above?
    5·1 answer
  • How many 2/3 are in 6.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!