All categories

3 years ago

HELP ME!!!PLEASE ITS DUE TODAY!!

Mathematics

2 answers:

Radda [10]3 years ago

6 0

Answer:

25quarts of grape juice, 50 quarts of water

Step-by-step explanation:

Do the math

Brrunno [24]3 years ago

3 0

Answer:

You'd need 50 quarts of sparkling water and 25 quarts of grape juice

Step-by-step explanation:

You can make an equation with this.

$75=4/6x+3/4x$

When you solve for this, you'll get 100/3.

You can then substitute x for 100/3 and get the numbers.

You might be interested in

In most linear programming problems, there are two stages:

xxMikexx [17]

Answer: Bruno = 16 cans, Blaze = 14 cans

Step-by-step explanation:

Part A gave you the three equations.

Part B showed you the intersected points --> (16, 14), (20, 10), & (21.4, 10.7)

Part C is giving you the Cost function: C(x, y) =0.10x + 0.20y

Input the intersected points into the Cost function to find the maximum.

C(16,14) = 0.10(16) + 0.20(14)

= 1.60 + 2.80

= 4.40

C(20,10) = 0.10(20) + 0.20(10)

= 2.0 + 2.00

= 4.00

C(21.4,10.7) = 0.10(21.4) + 0.20(10.7)

= 2.14 + 2.14

= 4.28

Of the three results we just found, 4.40 is the biggest value.

So, the maximum occurs at C(16,14) = 4.40

↓ ↓

Bruno Blaze

5 0

3 years ago

Salaries of entry-level computer engineers have Normal distribution with unknown mean and variance. Three randomly selected comp

avanturin [10]

Answer:

H0 : μ = 60000

H1 : μ ≠ 60000

Test statistic = 3.464

Step-by-step explanation:

Given :

Sample mean salary, xbar = 80000

Sample standard deviation, s = 10000

Population mean salary , μ = 60000

Sample size, n = 3

Hypothesis :

H0 : μ = 60000

H1 : μ ≠ 60000

The test statistic :

T = (xbar - μ) ÷ (s/√(n))

T = (80000 - 60000) ÷ (10000/√(3))

T = 20000 / 5773.5026

T = 3.464

The Decison region :

If Tstatistic >Tcritical

Tcritical at 10%, df = 2 ; two - tailed = 2.9199

Tstatistic > Tcritical ; He

5 0

3 years ago

A fish tank initially contains 15 liters of pure water. Brine of constant, but unknown, concentration of salt is flowing in at 4

bulgar [2K]

Answer:

$\frac{dx}{dt}=4c-\frac{4}{15}x$

Step-by-step explanation:

Data provided in the question:

Initial volume of water = 15 liters

Concentration of salt = 4 liters per minute

x be the amount of salt, in grams, in the fish tank after t minutes have elapsed

The unknown concentration of incoming brine c.

Now,

Salt concentration per minute = $\frac{4}{15}$

For x amount of salt = $\frac{4}{15}x$

Therefore,

$\frac{dx}{dt}=4c-\frac{4}{15}x$

8 0

3 years ago

You cant see all the answer choice so it's: a) A b) B c) C d) D

swat32

Answer: The answer could be C because is the image of the rotation by 90 degrees clockwise. I hope its right

5 0

3 years ago

4. Entry to a certain University is determined by a national test. The scores on this test are normally distributed with a mean

Karo-lina-s [1.5K]

Answer:

Yes, Tom must be admitted to this university.

Step-by-step explanation:

We are given that the scores on national test are normally distributed with a mean of 500 and a standard deviation of 100.

Also, we are provided with the condition that Tom wants to be admitted to this university and he knows that he must score better than at least 70% of the students who took the test.

Let, X = score in national test, so X ~ N( $\mu=500 , \sigma^{2} = 100^{2}$ )

The standard normal z distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

Now, z score of probability that tom scores 585 is;

Z = $\frac{585-500}{100}$ = 0.85

Now, proportion of students scoring below 85% marks is given by;

P(Z < 0.85) = 0.80234

This shows that Tom scored 80.23% of the students who took test while he just have to score more than 70%.

So, it means that Tom must be admitted to this university.

4 0

4 years ago