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alex41 [277]
1 year ago
14

Solve the equation. 3x-3(4+x)=3/4(3x+2)-1

Mathematics
1 answer:
bonufazy [111]1 year ago
8 0

Answer:

x=\frac{10}{3}

Step-by-step explanation:

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

Solve the parenthesis ↑

3x-12+3x=\frac{9}{4}x+\frac{6}{4}-1

Multiply everything by 4 to get rid of the denominators.

\frac{12x}{4}-\frac{48}{4}+\frac{12x}{4}=\frac{9}{4}x+\frac{6}{4}-\frac{4}{4}

Rid the denominators.

12x-48+12x=9x+6-4

Solve.

12x+12x-9x=6-4+48

15x=50

x=\frac{50}{15}

Simplify.

x=\frac{10}{3}

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A washer and a dryer cost 792 combined. The washer costs 92 more than the dryer. What is the cost of the dryer?
WITCHER [35]

Answer:

divide 792 by 2

792÷2=304

then add 92 to the cost 304

304+92=396

6 0
1 year ago
5 to the power of 5 divided by 5 to the power of 3
Lemur [1.5K]

Answer:

25

Step-by-step explanation:

5 to the power of 5 is 3125.

because you do 5x5x5x5

then you do 5x5x5 which is 125

3125/125 = 25

6 0
2 years ago
6. Which ordered pairs are solutions to the inequality 5 − ≤20 Select each correct answer
dexar [7]
For questions #6 & #8, you didn't complete them or provide all necessary things (such as description, data, or graph). 5 − ≤ 20 is not an inequality, an inequality should be something like 5 - x ≤ 20, but you didn't give anything like that in your question.

7. (-1,4), (5,2), we can calculate the slope. As x increases from -1 to 5, (increases by 6), the y-value decreases by 2. -2/6 = -1/3, the slope is -1/3. The slope is negative and the y-value decreases by a third of the amount the x-value changes.
9. C, because you can only hold at MOST 500, and larger watermelons is represented by 10x. I'm assuming you made an error in your question, you gave me the values of larger/smaller watermelons only, and your question asked for larger & medium and the options seem to suggest there's only larger/smaller. 10x + 3y <= 500 or <, smaller than or equal would be the better choice if available.
10. y = 2x + 10, because 2 is the slope as minutes increase by 1, inches increase by 2, and the 10 inches of sawdust are already there.

When you offer Questions #6 & #8's data, I'll gladly help you with it. The rest of the questions are correct and properly explained.
6 0
2 years ago
Read 2 more answers
In circle O, RV= 4 and VO= 7 find BA
Talja [164]
I think you will have t use theorem Ba=Rv^2+vo^2 Ba=4^2+7^2 Ba=16+49 Ba=65
4 0
3 years ago
What is $6.25 marked up 25%
Marta_Voda [28]

Answer:

$6.25 marked up 25% is $7.81

Step-by-step explanation:

First, you have to find what 25% is of 6.25.

Step 1: Our output value is 25.

Step 2: We represent the unknown value with x.

Step 3: From step 1 above, 25=100%.

Step 4: Similarly, x=6.25%.

Step 5: This results in a pair of simple equations:

25=100%(1)

x=6.25%(2)

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

<u>25 </u> =   <u>100</u>

 x       6.25

Step 7: Again, the reciprocal of both sides gives

<u> x </u> =  <u>6.25</u>

25     100

x= 1.5625

x≈ 1.56

Once you've known what 25% is, you add it to 6.25.

1.56+6.25= 7.81

7 0
3 years ago
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