admin

2 months ago

Guest #56

2 months ago

The **double lathe milk **with 2 percent fat **concentration**, is made by

considering the concentration and amount of each **constituent**.

The **amount** of each type of **milk **to be used in the pint of **double lathe**

are;

- pint of the 1 percent fat milk and pint of the 4 percent
**fat milk**.

**Reasons**:

Let *x* **represent the amount **of the milk that contains 1 percent fat in the

volume of the 2 percent fat milk.

Therefore, we have;

The amount of the **4 percent fat milk** to be used =

Therefore;

4 - 9·x = 2

4 - 2 = 9·x

The amount of the **1 percent fat milk** to be used for the double lathe, x =

of a pint.

The amount of the 4 percent fat milk to be used for the double lathe =

Therefore;

The mount of the **4 percent fat milk** =

The amount of the 4 percent **fat milk** to be used for the double **lathe **=

pint.

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Guest #57

2 months ago

You should use 2/9 of a pint of the 1% milk and 1/9 of a pint of the 4% milk.

Let x be the amount of 1% milk used. 1% = 1/100 = 0.01; this gives us 0.01x to represent this.

We know that we will use the 4% milk to make up the rest of the 1/3 pint; this gives us 0.04(1/3-x).

Together, they will make 1/3 pint of 2% milk, or 0.02(1/3)

This gives us the equation

0.01x+0.04(1/3-x) = 0.02(1/3)

Multiplying, we have

0.01x+0.04/3-0.04x = 0.02/3

We can multiply everything by 3 to eliminate the fractions:

0.01x*3 + 0.04 - 0.04x*3 = 0.02

0.03x + 0.04 - 0.12x = 0.02

Combining like terms, we have

-0.09x + 0.04 = 0.02

Subtract 0.04 from both sides:

-0.09x + 0.04 - 0.04 = 0.02 - 0.04

-0.09x = -0.02

Divide both sides by -0.09:

-0.09x/-0.09 = -0.02/-0.09

This gives us x = 2/9, so we will use 2/9 of a pint of the 1% milk.

1/3 - 2/9 = 3/9 - 2/9 = 1/9; we will use 1/9 of a pint of the 4% milk.

Let x be the amount of 1% milk used. 1% = 1/100 = 0.01; this gives us 0.01x to represent this.

We know that we will use the 4% milk to make up the rest of the 1/3 pint; this gives us 0.04(1/3-x).

Together, they will make 1/3 pint of 2% milk, or 0.02(1/3)

This gives us the equation

0.01x+0.04(1/3-x) = 0.02(1/3)

Multiplying, we have

0.01x+0.04/3-0.04x = 0.02/3

We can multiply everything by 3 to eliminate the fractions:

0.01x*3 + 0.04 - 0.04x*3 = 0.02

0.03x + 0.04 - 0.12x = 0.02

Combining like terms, we have

-0.09x + 0.04 = 0.02

Subtract 0.04 from both sides:

-0.09x + 0.04 - 0.04 = 0.02 - 0.04

-0.09x = -0.02

Divide both sides by -0.09:

-0.09x/-0.09 = -0.02/-0.09

This gives us x = 2/9, so we will use 2/9 of a pint of the 1% milk.

1/3 - 2/9 = 3/9 - 2/9 = 1/9; we will use 1/9 of a pint of the 4% milk.

Question

An electrician can wire a house in 20 hours. if she works with an apprentice, the same job can be completed in 12 hours. how long would it take the apprentice, working alone, to wire the house?

Solution 1

We know that

An electrician can wire a house in ------------> 20 hours

so

100%----------------> 20 hours

X-------------------> 12 hour

x=12*100/20----> x=60%

that means

the apprentice in 12 hours complete the (100-60)----> 40%

the apprentice in 12 hours complete -------> 40%

x hours------------------------------------> 100%

x=100*12/40-----> x=30 hours

**the answer is**

**30 hours**

An electrician can wire a house in ------------> 20 hours

so

100%----------------> 20 hours

X-------------------> 12 hour

x=12*100/20----> x=60%

that means

the apprentice in 12 hours complete the (100-60)----> 40%

the apprentice in 12 hours complete -------> 40%

x hours------------------------------------> 100%

x=100*12/40-----> x=30 hours

Question

A man has 25 25 coins in his pocket, all of which are dimes and quarters. if the total value of his change is $ 4.45 $4.45, how many dimes and how many quarters does he have?

Solution 1

If all were dimes, the value would be $2.50. The man has $1.95 more than that amount. Trading a dime for a quarter increases the value by $0.15, so there must be

$1.95/$0.15 = 13

quarters.

The man has 12 dimes and 13 quarters.

_____

Check:

12*$0.10 +13*$0.25 = $1.20 +3.25 = $4.45 . . . (answer checks OK)

$1.95/$0.15 = 13

quarters.

The man has 12 dimes and 13 quarters.

_____

Check:

12*$0.10 +13*$0.25 = $1.20 +3.25 = $4.45 . . . (answer checks OK)

Question

The sum of two numbers is 67 . The smaller number is 11 less than the larger number. What are the numbers?

Solution 1

Lets work this out...

67 is the answer we have so 67 - 11=56 so 56+11= 67

sum: addition

so 67 is a sum

Ans:56 + 11 = 67

67 is the answer we have so 67 - 11=56 so 56+11= 67

sum: addition

so 67 is a sum

Ans:56 + 11 = 67

Solution 2

Lets work this out...

67 is the answer we have so 67 - 11=56 so 56+11= 67

sum: addition

so 67 is a sum

Ans:56 + 11 = 67

Question

Find the measure of an angle between 0º and 360º coterminal with an angle of –110º in standard position

Solution 1

An **angle **measures how how much you have to rotate one line called *initial side*** **so it lies on the top of other line called the *terminal side. *Angles whose vertex is located at the origin having the initial side on the positive x-axis is said to be in **standard position. **On the other hand, **coterminal angles **are angles in standard position having the same terminal side. In this way, for the angle:

Question

The queston is find the equivalent fraction of 48/60 with the numerator 8 what is the answer?

Solution 1

Solution 2

the answer is is i have no absolute idea but i need points and it didn't let me copy the other guys answer.

Question

A researcher reports that mean ratings of liking for some food are m = 0.8, sd = 2.4. if the null hypothesis was that the mean equals 0, then what is the effect size for this test using estimated cohen's d?

Solution 1

cohen's d is a rathe rwrong way to word things so i suggest you rerun your Claulctaion

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