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
Margarita [4]
2 years ago
12

6. Cafe A offers 2 free bottled waters or juices for every 20 purchased. What is the ratio of free drinks to purchased drinks? *

Mathematics
1 answer:
zepelin [54]2 years ago
4 0

Answer:

1: 10

Step-by-step explanation:

2/2 =2

20/2 = 10

You might be interested in
A company printed 10,398 flyers for its sales people. Each sales person received the same
Vlad1618 [11]

Answer:

3,2,6

Step-by-step explanation:

if you divide 10,398 by all numbers 3,2 and 6 have whole numbers:)

4 0
2 years ago
Read 2 more answers
A lottery ticket has a grand prize of $31 million. The probability of winning the grand prize is .000000018. Determine the expec
vlabodo [156]

Answer:

$0.558

Step-by-step explanation:

The expected value is the sum of the value of each outcome times the chance that it happens. In this case, there are two outcomes:

  1. Win $31 million
  2. Win $0

Then our expected value can be calculated as:

EV=(31,000,000)(0.000000018)+(0)(1-0.000000018)=0.558

5 0
2 years ago
Initially a tank contains 10 liters of pure water. Brine of unknown (but constant) concentration of salt is flowing in at 1 lite
zhenek [66]

Answer:

Therefore the concentration of salt in the incoming brine is 1.73 g/L.

Step-by-step explanation:

Here the amount of incoming and outgoing of water are equal. Then the amount of water in the tank remain same = 10 liters.

Let the concentration of salt  be a gram/L

Let the amount salt in the tank at any time t be Q(t).

\frac{dQ}{dt} =\textrm {incoming rate - outgoing rate}

Incoming rate = (a g/L)×(1 L/min)

                       =a g/min

The concentration of salt in the tank at any time t is = \frac{Q(t)}{10}  g/L

Outgoing rate = (\frac{Q(t)}{10} g/L)(1 L/ min) \frac{Q(t)}{10} g/min

\frac{dQ}{dt} = a- \frac{Q(t)}{10}

\Rightarrow \frac{dQ}{10a-Q(t)} =\frac{1}{10} dt

Integrating both sides

\Rightarrow \int \frac{dQ}{10a-Q(t)} =\int\frac{1}{10} dt

\Rightarrow -log|10a-Q(t)|=\frac{1}{10} t +c        [ where c arbitrary constant]

Initial condition when t= 20 , Q(t)= 15 gram

\Rightarrow -log|10a-15|=\frac{1}{10}\times 20 +c

\Rightarrow -log|10a-15|-2=c

Therefore ,

-log|10a-Q(t)|=\frac{1}{10} t -log|10a-15|-2 .......(1)

In the starting time t=0 and Q(t)=0

Putting t=0 and Q(t)=0  in equation (1) we get

- log|10a|= -log|10a-15| -2

\Rightarrow- log|10a|+log|10a-15|= -2

\Rightarrow log|\frac{10a-15}{10a}|= -2

\Rightarrow |\frac{10a-15}{10a}|=e ^{-2}

\Rightarrow 1-\frac{15}{10a} =e^{-2}

\Rightarrow \frac{15}{10a} =1-e^{-2}

\Rightarrow \frac{3}{2a} =1-e^{-2}

\Rightarrow2a= \frac{3}{1-e^{-2}}

\Rightarrow a = 1.73

Therefore the concentration of salt in the incoming brine is 1.73 g/L

8 0
3 years ago
Please help me asap, i was absent the day we learned this and haven't been able to pick it up
Maksim231197 [3]

Answer:

Your dead meat then...

Step-by-step explanation:

But I’m pretty sure its b?

sorry if it’s wrong

7 0
3 years ago
Read 2 more answers
Solve the equation for x: 3(m+7)=6(m+2)
Morgarella [4.7K]

Answer:

3

Step-by-step explanation:

There is no x in the equation, so I will assume solving for m

Distribute:

3m + 21 = 6m + 12

Subtract 3m and 12

3m = 9

Divide by 3

m = 3

8 0
2 years ago
Read 2 more answers
Other questions:
  • A bicycle is on sale at $12 more than half of the regular price. If the sale price is $75, find the regular price.
    8·1 answer
  • 6th grade math money stuffs
    8·1 answer
  • The length of a rectangle is 5 yd less than double the width, and the area of the rectangle is 52 yd2 . find the dimensions of t
    5·1 answer
  • I need help. please show your work!
    8·2 answers
  • A rocket is launched from the top of a 90 foot cliff with an initial velocity of 140 feet per second. The height, h, of the rock
    6·1 answer
  • The side lengths of triangle a are increased by 40%. The side lengths of triangle b do not change. What is the new ratio of the
    8·1 answer
  • Really could use the help
    14·1 answer
  • 6(a + 12) equivalent expressions
    15·1 answer
  • 0 If 3x+ 11 = 86-5 the x = ?
    7·2 answers
  • 6 erasers cost $6.60. Which equation would help determine the cost of 3 erasers
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!