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tiny-mole [99]
3 years ago
15

A baker uses chocolate with 75% cocoa for his famous cake. But his supplier delivered 100 lb of chocolate with 70% cocoa, so the

baker needs to melt and mix the delivery with chocolate that has 90% cocoa. How much of the 90% chocolate should he use?
Mathematics
2 answers:
wlad13 [49]3 years ago
5 0

33 1/3 BTW i am from RSM too :)

Nonamiya [84]3 years ago
4 0

Answer:

213 1/3

Step-by-step explanation:

Because I know where you got this question from.

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What is the solution of the system of equations?
umka21 [38]

No solution of the system of equations y = -2x + 5 and -5y = 10x + 20 ⇒ 2nd answer

Step-by-step explanation:

Let us revise the types of solutions of a system of linear equations

  • One solution
  • No solution when the coefficients of x and y in the two equations are equal and the numerical terms are different
  • Infinitely many solutions when the coefficients of x , y and the numerical terms are equal in the two equations

∵ y = -2x + 5

- Add 2x to both sides

∴ 2x + y = 5 ⇒ (1)

∵ -5y = 10x + 20

- Subtract 10x from both sides

∴ -10x - 5y = 20

- Divide both sides by -5

∴ 2x + y = -4 ⇒ (2)

∵ The coefficient of x in equation (1) is 2

∵ The coefficient of x in equation (2) is 2

∴ The coefficients of x in the two equations are equal

∵ The coefficient of y in equation (1) is 1

∵ The coefficient of y in equation (2) is 1

∴ The coefficients of y in the two equations are equal

∵ The numerical term in equation (1) is 5

∵ The numerical term in equation (2) is -4

∴ The numerical terms are different

From the 2nd rule above

∴ No solution of the system of equations

No solution of the system of equations y = -2x + 5 and -5y = 10x + 20

Learn more:

You can learn more about the system of equations in brainly.com/question/6075514

#LearnwithBrainly

7 0
3 years ago
Which of following not a way to represent the solution of inequality 5(x + 2) GREATER THAN OR EQUAL TO 7x + 2(x − 1)?
mixer [17]
So because it says NOT a way....I think it's A...Maybe I'm wrong but whatever.
6 0
3 years ago
Read 2 more answers
12 m<br> 9 m<br> 8 m<br> I am looking for what shape it is
Mariulka [41]

Answer:

TRIANGLE

Step-by-step explanation:

ISOCELES

3 0
3 years ago
1/3÷7 3/4 dividing fraction
Ede4ka [16]

Answer:

4/93 or 0.04301075...

Step-by-step explanation:

Reduce the expression by cancelling the common factors

6 0
2 years ago
What is the value of the expression when t is equal to 15? 2t divide 3
goblinko [34]
If we take the value of t to be 15 and then we perform the calculations of 2 times t divided by 3, we can express it all by two equations substituting the value given for t like so:
t = 15
2t/3 = 2(15)/3 = 30/3 = 10
3 0
3 years ago
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