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hammer [34]
2 years ago
6

A 100mL cup of very sweet tea consists of 90% water and 10% sugar. 20% of the tea is poured out. Then, 80mL of water are added.

What percentage of the mixture is now sugar?
Mathematics
1 answer:
nasty-shy [4]2 years ago
8 0

Answer:

this probably wont help but

Step-by-step explanation:

<u><em>the tea in the large pitcher will be sweeter than the tea in the small pitcher. </em></u>

<u><em>There are many ways to draw diagrams of this situation, and many ways to reason about any given diagram. The key is to compare some like quantity between the two pitchers. In this example, we compare the amount of sugar in 2 cups of tea for each pitcher.</em></u>

<u><em></em></u>

<u><em>In the small pitcher (the top diagram), you can see in the diagram that for every 2 cups of tea, there is 1 teaspoon of sugar. But in the large pitcher (the bottom diagram), you can see that for every 2 cups of tea, there is more than 1 teaspoon of sugar.</em></u>

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Derek saves 10% of his paycheck each week to buy a mountain bike the mountain bike costs 340.00 Derek receives a paycheck in the
katrin2010 [14]

Answer: 13 weeks

Step-by-step explanation:

First you have to find 10% of 340.00 which is 28, so each week he saves 28.00 for his bike. To find how many paychecks he has to recieve you divide 340.00 by 28.00, which is 12.1, since there is a decimal place you have to round it up to 13 because it is a little bit more than 12 paychecks. ;)

7 0
3 years ago
Suppose an economy experiences an increase in unemployment across all industries. What is the result of this increase in unemplo
r-ruslan [8.4K]

The curve of production possibilities would shift inward because labor is considered a factor of production. By reducing productive resources, the maximum level of production will decrease and unemployment level increases.

In a Market Economy, Employment and Production Levels are set by balance between Supply and Demand. In this situation, a reduction on Demand means that Level of Production is higher than what Market can afford and there are two possibilities: (i) Lowering prices of goods and services, which may be perjudicial for businessmen and capitalists but may allow to sell this surplus, (ii) Firing some workforce to eliminate Supply surplus, since there is a relationship between Workforce and Production, which is tinged with other production factors as Technology and Skills.

Hence, the curve of production possibilities would shift inward because labor is considered a factor of production. By reducing productive resources, the maximum level of production will decrease and unemployment level increases.

Please see this question related to Market Economy: brainly.com/question/2343400

6 0
3 years ago
Simplify fully<br> 6x2 +x–1 4x2 – 1
AlexFokin [52]

Answer:

​3x−1

Step-by-step explanation:

1 Split the second term in 6{x}^{2}+x-16x

​2

​​ +x−1 into two terms.

\frac{6{x}^{2}+3x-2x-1}{4{x}^{2}-1}

​4x

​2

​​ −1

​

​6x

​2

​​ +3x−2x−1

​​  

2 Factor out common terms in the first two terms, then in the last two terms.

\frac{3x(2x+1)-(2x+1)}{4{x}^{2}-1}

​4x

​2

​​ −1

​

​3x(2x+1)−(2x+1)

​​  

3 Factor out the common term 2x+12x+1.

\frac{(2x+1)(3x-1)}{4{x}^{2}-1}

​4x

​2

​​ −1

​

​(2x+1)(3x−1)

​​  

4 Rewrite 4{x}^{2}-14x

​2

​​ −1 in the form {a}^{2}-{b}^{2}a

​2

​​ −b

​2

​​ , where a=2xa=2x and b=1b=1.

\frac{(2x+1)(3x-1)}{{(2x)}^{2}-{1}^{2}}

​(2x)

​2

​​ −1

​2

​​  

​

​(2x+1)(3x−1)

​​  

5 Use Difference of Squares: {a}^{2}-{b}^{2}=(a+b)(a-b)a

​2

​​ −b

​2

​​ =(a+b)(a−b).

\frac{(2x+1)(3x-1)}{(2x+1)(2x-1)}

​(2x+1)(2x−1)

​

​(2x+1)(3x−1)

​​  

6 Cancel 2x+12x+1.

\frac{3x-1}{2x-1}

​2x−1

​

​3x−1

​​  

8 0
3 years ago
Please help!! also do a bit of explaining too! ill give brainliest
mario62 [17]

Answer:

0

Step-by-step explanation:

Opposite numbers lie on opposite sides of 0 but are the same distance from 0.  For example,  the opposite of 3 is -3, and both those numbers are on opposite sides of 0, both 3 units from it.

The opposite of -4 is 4.  Those are on opposite sides of 0 and both are 4 units from it.

Zero?

The opposite of 0 is 0 itself!  The symbol -0 can be confusing if you read that as "negative zero" and expect it to be on the negative side of the number line.  It's better to read that as "the opposite of zero" or, if you want to sound overly smart (but even more correct!), say "the additive inverse of 0".

This all leads up to the idea of absolute value of a number:  its distance from 0.

|3| = 3

|-4| = 4

|0| = 0

4 0
3 years ago
Graph y= –3x+4. (I WILL MARK BRAINLIEST)
Ne4ueva [31]

Answer:

See attached

Step-by-step explanation:

<u>Given function:</u>

  • y= –3x + 4

To graph the line we need two points

One of the easy points is the y-intercept:

  • (0, 4)

Another point can be taken depending on the slope. With the slope of -3, we select x = 2 and find its y- coordinate:

  • y = -3(2) + 4 = -6 + 4 = -2

So we have points

  • (0, 4) and (2, -2)

Plot these points and connect with the line and we are done.

6 0
3 years ago
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