Generic sugar which costs $2.23/kg is made by combining brand X sugar which costs $1.18/kg with brand Y sugar which costs $3.98/kg. Find the number of kg of brand X sugar and brand Y sugar required to make 40 kg of generic sugar.

Answers

Answer 1

Answer:

X = 14 kg

Y= 7 kg

Step-by-step explanation:

LET  X and Y equal the amounts of brand X and Y

X = kg of brand X

Y = kg of brand Y

we know:

1)   X    +    Y   =   21    (kg)

2)   1X  +   4Y  =   2(X + Y)        (This is the cost/kg * amounts for total cost)  

Coefficients 1,4,2  are the cost/kg)

substitute eq. 1 (X+Y), = 21 into right side of equation 2

1X + 4Y = (21)*2

use elimination to solve 2 equations

X   +   Y = 21

X   + 4Y = 42        (now subtract,       note:  I wrote the 1X as just X)

------------------

0     -3Y  = -21       OR   Y = 7 kg   so X = (21-7) OR   X = 14 kg


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Answer:

14)$9,320.00. 15)Chen has 8 nickels, 2 dimes, and 6 quarters.     16)10%

Step-by-step explanation:

14)A = $9,320.00

I = A - P = $1,320.00

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

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Converting r decimal to R a percentage

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The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x. What is the constant of proportionality?

Answers

it should be 135





hope this helps

The constant of proportionality is 225.

Given that,

The number of calories burned by a 90-pound cyclist is proportional to the number of hours the cyclist rides. The equation to represent this relationship is y = 225x

Based on the above information, the calculation is as follows:

y = kx

So here the constant should be 225.

Learn more: brainly.com/question/17429689

a pair of jeans cost 35.00. the sales tax is 7%. how much is the sale tax?

Answers

Answer:

2.45

Step-by-step explanation:

$2.45

we know that because you take the 35.00, move the decimal point on 7% and times 35.00 by the .7. Making 2.45 dollars!

Hope this helps!

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Answers

Answer:

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Step-by-step explanation:

Answer:

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Angelica is deciding which bank would give her the best simple interest rate on a $300 deposit. One bank says she will have $320 in her account if she leaves the principal for 2 years. Is this enough information for Angelica to find the interest rate?

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Answers

Answer: No. I don't believe that is enough information.

Step-by-step explanation:

Answer: No

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Jason earns $20 per game as a referee in youth soccer games. Write an expression to find how much money Jason will earn for refereeing n number of games. How much will he earn for refereeing 6 games?
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Answers

The correct answer is

20n: $120

$120

The total made would be found by multiplying the amount me makes per game by the number of games he referees.

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I WILL GIVE 69 POINTS AND BRAINLIEST TO WHOEVER ANSWERS ALL 5 QUESTIONS

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Sheldon harvests the strawberries and tomatoes in his garden.

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Step-by-step explanation:

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP :O Simple Algebra! I'll give BRAINLIST!!!!!!!! Pls look at the image below. Please do all. Tell me which is equivalent. TY. Quick pls

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Step-by-step explanation:

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Step-by-step explanation:

Thats the answer

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PLEASE HELP ASAP!!!! WILL GIVE BRAINLIEST

Jesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is reading 30 pages a day. Amir didn't start until Sunday, but he is reading 35 pages a day.

How many days will it take Amir to catch up to Jesse, and how many pages will they each have read?

1. Write an equation to represent the number of pages Amir has read. Use x to represent the number of days Amir has been reading and y to represent the number of pages he has read.

2. Write an equation to represent the number of pages Jesse has read.

Using x, the number of days Amir has been reading, write an expression to represent the number of days Jesse has been reading. Remember that Jesse started reading one day before Amir. Use this expression to write an equation for the number of pages Jesse has read. Let y represent the number of pages read.

3. Write the system of equations using your answers from questions 1 and 2.

4. You will use substitution to solve this system. Which variable will you substitute for and why? Show the equation that results from the substitution.

5. Solve the system of equations. Show your work.

Answers

Answer:

6 days

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Step-by-step explanation:

As stipulated by the question, let the number of days Amir has been reading be x and the number of pages he had read to be y.

Now since he reads 35 pages per day.

The answer is 6 days.

210 Pages

STEP-BY-STEP:

Amir has been reading X and the pages is Y

Now since he reads 35 pages per day

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Days he read would be x + 1.

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x = 30/5
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Step-by-step explanation:

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Answers

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Hope this helps!

1. What is the simple interest on $4,500 for 2 and a half years at 4% per year?
2. On a loan of $4,500 for 2 1/2 years at 4% per year, how much do you wind up paying to pay off the loan?
3. What is the simple interest on $40,000 for 10 years at 12%?
4. For a loan of $40,000 at 12% for 10 years, how much do you wind up paying back?

Answers

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Step-by-step explanation:

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1. $450

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Step-by-step explanation:

I took a test and got these questions correct. I hope this helps!

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Answers

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The value of the third slide is 12

Step-by-step explanation:

is 9% of 20 greater than or less than 2?

Answers

Answer:

Less

Step-by-step explanation:

10% of 20 = 2. So, 2 does not equal 9% of 20.

Answer:

less than.

Step-by-step explanation:

9% of 20 is 1.8, which is less than 2.

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