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Bess [88]
2 years ago
9

Simplify the following expression: 3b+5-9b-9+6b

Mathematics
2 answers:
galina1969 [7]2 years ago
4 0

Answer:

3(3+2b)

or

2b +9

Step-by-step explanation:

defon2 years ago
3 0

Answer:

Step-by-step explanation:

3b+5-9b-9+6b

=3b+6b-9b+5-9=-4

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The list price of the item is 80 percent of the original price. The price of the item has been reduced by 80 percent. Write a pa
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Answer:

Step-by-step explanation:

Given the expressions :

The list price of the item is 80 percent of the original price. The price of the item has been reduced by 80 percent.

Write a pair of linear equations using variables of your choice to prove that these two statements are not equivalent.

Let the original price = x

Expression 1 : The list price of the item is 80 percent of the original price

List price = 80% of x

List price = 0.8x

Expression 2: The price of the item has been reduced by 80 percent

Price = x - 80% of x

Price = x - 0.8x

Price = 0.2x

Multiply by percentages is different from an Incremental or decrement in percentage. The first expression above signifies a direct multiplication by the stated percentage while the second signifies a decrease in price based on a certain percentage of the original price.

Wording of percentages are so important for clarity in other to understand if the statement signifies a direct application of the percentage prescribed or a change in quantity, amount or size relative to the base unit.

3 0
3 years ago
The measure of the first angle in a triangle is 60 degrees, the second angle is 90 degrees. How many degrees is the measure of t
Ludmilka [50]
If it’s out of 180 degrees it’s 30 degrees
5 0
2 years ago
Read 2 more answers
In a class of students, the following data table summarizes how many students have a
Illusion [34]

Answer:

160/32= 5

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Step-by-step explanation:

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6 0
2 years ago
Identify the solution set of 3 In 4 = 2 In x.<br> -{6}<br> -{-8,8}<br> -(8)
o-na [289]

Option C: The solution set is \{8\}

Explanation:

The expression is 3 \ln 4=2 \ln x

Now, let us find the solution set.

Switch sides, we get,

2 \ln x=3 \ln 4

Dividing by 2 on both sides, we have,

\ln x=\frac{3 \ln 4}{2}

Thus,  \ln 4=\ln 2^2=2\ln 2

Hence, the above expression becomes,

\ln x=\frac{3 \cdot 2 \ln (2)}{2}

Simplifying, we get,

\ln x=3 \ln 2

Applying the log rule, we get,

$$\ln x$=\ln \left(2^{3}\right)$

Simplifying, we have,

$$\ln x$=\ln \left8\right$

Applying the log rule, we have,

x=8

Thus, the solution set is \{8\}

Hence, Option C is the correct answer.

5 0
3 years ago
Geometry proof<br> help please
Aleks [24]
JK = MN because of Given

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6 0
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