MATHEMATICS MIDDLE SCHOOL

An industrial cleaner is manufactured using only the 3 secret ingredients A, B, and C, which are mixed in the ratio of 2:3:5, respectively, by weight. How many pounds of secret ingredient B are in a 42-pound (net weight) bucket of this cleaner?A. 4.2
B. 12.6
C. 14.0
D. 18.0
E. 21.0

Answers

Answer 1
Answer:

Answer:  The correct option is (B) 12.6.

Step-by-step explanation:  Given that an industrial cleaner is manufactured using only the 3 secret ingredients A, B, and C, which are mixed in the ratio of 2 : 3 : 5 respectively, by weight.

We are to find the number of pounds of the secret ingredient B that are in a 42-pound bucket of this cleaner.

Let the quantities of the ingredients A, B and C in the cleaner be 2x, 3x and 5x respectively.

Then, according to the given information, we have

2x+3x+5x=42\n\n\Rightarrow 10x=42\n\n\Rightarrow x=(42)/(10)\n\n\Rightarrow x=4.2.

Therefore, the quantity of the ingredient B is given by

3*4.2=12.6~\textup{pounds}.

Thus, option (B) is CORRECT.
Answer 2
Answer: The ratios add up to 10 so 42/10 is 4.2 and as b is 3parts you times 4.2 by 3 giving you 12.6

Related Questions

Which of the following percents is more than 2 out of 6 but less than 3 out of 5?a) 33%b) 50%c) 75%d) 85%PLEASE HELP QUICKLY!!!!!!!!!!!!!!
I really need plz help ASAP the right answer will be marked of brainlest
Write a number less than 69?
A circle is dovided into 18 equal parts. How many degrees is the angle for each part? How any degrees for 5 parts? Explain.
Two pay as you go which company offered the best deal

Grace walked 32 miles last month. So far this month she has walked 5 eighths as far as last month. How far has grace walked this month

Answers

You would divide 32 by 8. 32÷8=4 Then multiply 4 by 5. 4×5=20 So Grace has walked 20 miles this month.
Grace has walked 20 miles

2b. Jill and Alice each sold 40 pieces offruit If65% of lill's sales were apples,
and Alice sold 5 apples, who sold more
apples? How many more?
PLEASE HELPPPPPP

Answers

Answer:

Jill sold more apples

1 more than Alice

Step-by-step explanation:

Jill sold 40 fruits

Alice sold 40 fruits

15% of Jill's sales is APPLES, that is:

15/100 = 0.15

0.15 * 40 = 6

Jill sold 6 apples.

Now, it is given Alice sold 5 apples.

Who sold more? Of course, Jill.

By how much? 6 - 5 = 1 apple more

What are the domain and range of the function {(3, 1), (5, –1), (9, –1), (2, 7), (–4, 1)}? A.
Domain: {3, 5, 9, 2 }; Range: {1, 7}

B.
Domain: {3, 5, 9, 2, –4}; Range: {1, –1, 7}

C.
Domain: {1, –1, 7}; Range: {3, 5, 9, 2, –4}

D.
Domain: {1, 7}; Range: {3, 5, 9, 2 }

Answers

B.... the x is the Domain and the y are the values that the x map to (Range)

How many centimeters are in 4.5 meters

Answers

There are 450 centimeters in 4.5 meters, next time try moving the decimal point over 2 places and adding a zero. 
1 cm= 0.01m \n\n 4.5m \to \boxed{450 cm}

In a recent year one United States dollars was equal to about 82 Japanese yen how many Japanese yen are equal to $100 $1,000 $10,000

Answers

$8,200
$82,000
$820,000

Help show the work for
5.2 divide by 0.13

Answers

The value of  (5.2/0.13) is 40 obtained by removing the decimals.

What are some alternative names for arithmetic operations?

Addition is also known as the sum, subtraction is also known as the difference, multiplication is also known as the product, and division is also known as the factor.

Given, 5.2 is divided by 0.13, which is (5.2/0.13).

Now we can multiply both the numerator and the denominator by 100.

∴ (5.2/0.13)×(100/100).

= 520/13.

= 40.

learn more about decimal division here :

brainly.com/question/3004071

#SPJ2

Answer:

40

Step-by-step explanation:

0.13 ⟌5.2 (We can move 0.13 over two spots)

13⟌520 (We move the decimal two spots because of previous)

We have

    ₄ ₀

13⟌520

  - 52

______

      0 0

       - 0

   ______

          0

So 40 is our final answer.

Other Questions
Round 4.191 to nearest hundredth
Which speed is the fastest? A) 18 feet in 20 minutes B) 90 feet in 2.5 hours C) 20 yards in 1.5 hoursD) 3 2/3 yards in 15 minutes
What is 0.006 written as a fraction of a percent?
Suppose you are given the lengths of two sides of a right triangle. Describe how you can find the length of the third side.