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Fiesta28 [93]
3 years ago
9

How do I simplify this expression 3(4+3r)

Mathematics
2 answers:
FrozenT [24]3 years ago
8 0
9r + 12
hope it halps
vivado [14]3 years ago
5 0
3(4+3r)
= 12 + 9r

Hope it helped :)
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1/4x – 2 = 3/8 Please show an equation and work. :)
Julli [10]
1/4x - 2 = 3/8

First, to start solving this, we can rearrange our fraction. Let's take 1/4x and change it to x/4. Why? Well, a variable can also be considered as the number 1.
\frac{x}{4} - 2 =  \frac{3}{8}

Second, now we can continue solving for our variable (x). Let's add 2 to each side.
\frac{x}{4} =  \frac{3}{8} + 2

Third, let's simplify 3/8 + 2. (3/8 + 2 = 2.375 =19/8)
\frac{x}{4} =  \frac{19}{8}

Fourth, continue trying to get the variable by itself. Multiply each side by 4.
x =  \frac{19}{8} \times 4

Fifth, let's simplify 19/8 × 4. This is simple. Leave the denominator be and just do 19 × 4, which equals 76.
x =  \frac{76}{8}

Sixth, our final step is to simplify our fraction. To do so, we will need to list the factors of the numerator and denominator and find the greatest common factor (GCF).

Factors of 76: 1, 2, 4, 19, 38, 76
Factors of 8: 1, 2, 4, 8

Since 4 is our first common factor, it is considered our GCF.

Seventh, now let's divide. Divide both the numerator and denominator by the GCF (4) to create our new simplified fraction.
76 \div 4 = 19 \\ 8 \div 4 = 2

Answer in fraction form: \fbox {x = 19/2}
Answer in decimal form: \fbox {x = 9.5}
8 0
3 years ago
One number is 14 more than another. the sum of two numbers is 20. find the numbers.
patriot [66]

The number is 6 because 14+6=20 and 6 is less than 14. Hope this helps.

4 0
3 years ago
Sasha had $1800 and share it in the ratio 2:3:4 between her 3 cousin what was the largest share
PilotLPTM [1.2K]

Answer:

$800

Step-by-step explanation:

total \: units \:  =  \\ 2 + 3 + 4 = 9 \: units \\ 9 \: units \:  = 1800 \\ 1 \: unit \:  = 1800 \div 9 \:  = 200 \\ largest \: share \:  = 4 \: units \\ 4 \: units \:  =  \: 200 \times 4 = 800

5 0
3 years ago
What is the average rate of change for this function for the interval from x=3 to x=5?​
timofeeve [1]

Answer:

B

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [ 3, 5 ]

From the table of values

f(b) = f(5) = 32

f(a) = f(3) = 8

Hence

average rate of change = \frac{32-8}{5-3} = \frac{24}{2} = 12

4 0
3 years ago
Read 2 more answers
Please help me ASAP!!!<br><br><br> thank you
Sholpan [36]

Step-by-step explanation:

10^3 means add 3 "000"

so 10^3 × 48 = 48,000

7 0
3 years ago
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