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Svetradugi [14.3K]
3 years ago
7

What is the solution to this equation? 6x + 10 - 2x= 7 + 23

Mathematics
1 answer:
Strike441 [17]3 years ago
7 0

Answer:

\boxed{x=5}

Step-by-step explanation:

First, you need to combine like terms in order to begin simplifying. This is done by subtracting 2x from 6x. Also, add 7 to 23.

6x + 10 - 2x = 7 + 23

4x + 10 = 7 + 23

4x + 10 = 30

Now, you have a two-step equation. Subtract 10 from both sides, and then divide by 4.

4x + 10 = 30

4x = 20

x = 5 is the final answer.

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The level of a lake was 8 inches below normal. It decrease 1 1/4 inches in June and 2 3/8 inches more in July. What was the new
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Answer:

Step-by-step explanation:

1

the initial level is below normal so it is represented by a negative number. the level continued to decrease in June and July so those changes are also represented by negative numbers. find the sum of these values to find what the new level was with respect to the normal level

2

write the mixed numbers as improper fractions

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get common denominator

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3 0
3 years ago
The sales tax in one state is 6 percent, Write a function rule for finding the total cost for an item with selling price x, then
Debora [2.8K]
Sales tax = 6% or 6/100. 
assuming tax is added onto the item:
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however, assuming the cost price = sales price  - tax,  then:
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3 0
3 years ago
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GenaCL600 [577]

Answer: a. The correlation coefficient of the data is positive.

Step-by-step explanation:

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Estimated slope of sample regression line  = \dfrac{-0.181+1.529}{2}

=\dfrac{1.348}{2}\\\\=0.674\ \ \ \ [\text{ positive}]

⇒Correlation coefficient(r) must be positive, So a. is true.

But, d. and e. are wrong(0.674 ≠ 0 or 1.348).

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So, the correct option : a. The correlation coefficient of the data is positive.

7 0
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yan [13]

Answer:

13

Step-by-step explanation:

use pythagorean theorem

8 0
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Ghella [55]

Yes it will. A 2 quart pitcher is equal to 8 cups, and since 1/4 and 1/3 are less it can still hold it.

8 0
3 years ago
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