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zysi [14]
3 years ago
8

3x+4=-4×3x solve and show work please :)

Mathematics
1 answer:
babunello [35]3 years ago
6 0

Hello!

Step 1. Simplify the equation... 3x+4-12x

Step 2. Add 12x to both sides... 3x+4+12x=−12x+12x

15x+4=0

Step 3. Subtract 4 from both sides... 15x+4−4=0−4

15x=-4

Step 4. Divide both sides by 15...15x/15=−4/15

X=-4/15

Final Answer: x=-4/15

Hope I could help! :)


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Katie has read 34% of a book. If she read 85 pages, does she have more than or fewer than 125 pages left to read? Explain
mestny [16]
Determine the percent of book she hasn't read.
percent = 100% - percent she has read
percent = 100% - 34%
percent = 66%
She hasn't read 66% of the book.

Find the amount of page she hasn't read.
page = $ \dfrac{\text{percent hasn't read}}{\text{percent has read}} \times\ \text{page has read}$
page = $ \dfrac{66\%}{34\%} \times\ 85$
page = $ \dfrac{66}{34} \times\ 85$
page = \dfrac{5,610}{85}
page = 165

The number of page she hasn't read is 165. It's more than 125.
3 0
4 years ago
Round four point seven six to one decimal place
klio [65]
4.76 rounded to one decimal place is 4.8

Look at the decimal place you want to round (the 7, since it is the one decimal place). 
Then look at the next digit (the 6). If it is 5 or greater, round up. Otherwise, round down.
You round up the 7 up because 6 is 5 or greater.
So you get the answer 4.8
3 0
3 years ago
APQR and ARST are shown.<br> S<br> R.<br> P<br> 440<br> T<br> What is mZQPR?<br> m/OPR
Serga [27]

Answer:

∠ QPR = 56°

Step-by-step explanation:

Δ RST is isosceles ( 2 congruent sides ) , then base angles are congruent

∠ SRT = \frac{180-44}{2} = \frac{136}{2} = 68°

∠ PRQ and ∠ SRT are vertically opposite angles and are congruent , so

∠ PRQ = 68°

Δ PRQ is isosceles ( 2 congruent sides ), then base angles are congruent , so

∠ QPR = \frac{180-68}{2} = \frac{112}{2} = 56°

3 0
3 years ago
Read 2 more answers
The width of a rectangle is 9 less than twice its length. If the area of the rectangle is 96
Alja [10]

Thee diagonal of the rectangle is 13.86 cm long.

<h3>What is the length of the diagonal of rectangle?</h3>

We are given that;

Width of a rectangle is 9 less than twice its length. Thus, if length is L, then;

W = 2L - 9

Area formula for a rectangle is;

A = Length * Width

We are given area of rectangle = 96 cm²

Thus;

L(2L - 9) = 96

2L² - 9L = 96

2L² - 9L - 96 = 0

Using online quadratic equation calculator gives;

L = 9.53 cm

Thus;

W = 2(9.53) - 9

W = 19.06 - 9

W = 10.06 cm

The diagonal of the triangle will be gotten from Pythagoras theorem;

D = √(9.53² + 10.06²)

D = √192.0245

D = 13.86 cm

Thus, we conclude that the diagonal of the rectangle is 13.86 cm long.

Read more about Rectangle Diagonal at; brainly.com/question/7071655

#SPJ1

6 0
2 years ago
A teacher is buying supplies for two art classes. For class 1, the teacher buys 24 tubes of paint, 12 brushes, and 17 canvasses.
Ede4ka [16]
Class 1 =$177.90
Class 2 =$159


Class 1

24 tube of paint / $3.35 each
12 brushes/ $1.75 each
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Class 2

20 tubes of paint/$3.35 each
14 brushes/$1.75 each
15 canvases/ $4.50 each
Total cost of paint=$67
Total cost of brushes =$24.50
Total cost of canvases=$67.50
Total spent on class 2 = $159
4 0
3 years ago
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