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Vadim26 [7]
3 years ago
13

I need help with math

Mathematics
1 answer:
Marat540 [252]3 years ago
6 0
The answer is C that’s all I can give to you
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<img src="https://tex.z-dn.net/?f=4%20%5Cfrac%7B2%7D%7B3%7D%20%20%20%2B%205x%20%3D%207%20%20-%202x" id="TexFormula1" title="4 \f
Delicious77 [7]

4 2/3+5x=7-2x

Add 2x to both sides.

4 2/3+7x=7

Subtract 4 2/3 on both sides.

7x=2 1/3

7x=7/3

Divide by 7 on both sides.

x=1/3

answer: x=1/3

5 0
3 years ago
Read 2 more answers
How many liters of water must be added to 15 liters of 40 % sugar syrup to obtain 30 % sugar syrup?
Ivanshal [37]

Answer:

The amount of water need to be added is 5 liters.

Step-by-step explanation:

Let's "x" be amount of water in (liters) added to 15 liters of 40% of sugar syrup.

Now find the amount of sugar syrup = 40% of 15

= 0.4 × 15

The amount of sugar syrup = 6 Liters

To dilute  30% we need to find amount of water to be added.

So,

30% of (15 + x) = 6

0.3 × (15 + x) = 6

4.5 + 0.3x = 6

0.3x = 6 - 4.5

0.3x = 1.5

Dividing both sides, by 0.3, we get

x = 5

So, the amount of water need to be added is 5 liters.

6 0
3 years ago
Read 2 more answers
A formal, logical explanation of some events that includes descriptions of how things relate to one another is called a(n):
frosja888 [35]

Answer:

Theory

Step-by-step explanation:

The theory refers to an explanation of something. It should be understandable also it contains some logic behind that

It is a formal, logical for events that involved the descriptions that related the things to one another

Therefore the above represent the theory

Hence, the same is to be considered

3 0
3 years ago
Negative positive or no association
Eddi Din [679]

Answer:

Positive association

Step-by-step explanation:

As the Temperature goes up the more money you have to spend because you pay for the electricity that produces the heat

positive association is when one varriable increases so does the other.

7 0
2 years ago
7 - 3b-2(0 + 3 - 2b)
Naddika [18.5K]

Step-by-step explanation:

7 - 3b-2(0 + 3 - 2b)

To simplify the expression in the box, Fatua used

these steps:

Step 1:7 - 3b-2(3 - 3b)

Step 2:7 - 3-6-36-

Step 3: -13 - 66

Did Fatua calculate correctly? if nnot, in what step

did she make her FIRST mistake?

6 0
2 years ago
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