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Black_prince [1.1K]
3 years ago
15

How many solutions are there to -46=3x+7x

Mathematics
1 answer:
tino4ka555 [31]3 years ago
4 0

Answer:

x = -4.6

Step-by-step explanation:

<u>Step 1:  Combine like terms </u>

-46 = 3x + 7x

-46 = 10x

<u>Step 2:  Divide both sides by 10 </u>

-46 / 10 = 10x / 10

<em>-4.6 = x </em>

Answer:  x = -4.6

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Help meeee with this questionnnnnnnnnn!!!!!!!!!!!!
Dafna1 [17]

Given:

The scale factor between two circles is \dfrac{2x}{5y}.

To find:

The ratio of their areas.

Solution:

We know that, all circles are similar.

The ratio of the areas of similar figures is equal to the ratio of squares of their corresponding sides or equal to the square of ratio of their corresponding sides.

The scale factor is the ratio of the corresponding sides.

Ratio of areas of circles = Square of scale factor between two circles

\text{Ratio of areas of circles}=\left(\dfrac{2x}{5y}\right)^2

\text{Ratio of areas of circles}=\dfrac{(2x)^2}{(5y)^2}

\text{Ratio of areas of circles}=\dfrac{4x^2}{25y^2}

Therefore, the correct option is D.

3 0
3 years ago
Write<br> 17/100<br> as a percentage.<br> HELPP ME I LITERALLY DINT KNOW IM Slowww
Readme [11.4K]

Answer:

17 / 100 = 0.17 %

I hope it is helpful

6 0
3 years ago
Which relationships describe the angle pair x° and 71º?
tester [92]

Answer:

Step-by-step explanation:complementary angles

8 0
3 years ago
Read 2 more answers
Winnona took five chapter tests. The table shows her scores. Test 1 2 3 4 5 Score 95 85 96 97 74 If Winnona retakes Test 5, what
mestny [16]

Answer:

The answer is A.

Step-by-step explanation:

Given that Winnona took 5 tests and retake Test 5. So the mean score for this question is Total number of scores divide by Total number of tests is equals to 87 :

Let Test 5's score be x,

Let mean score be 87,

\frac{95 + 85 + 96 + 97 + x}{5}  = 87

Next you have to solve the value of x :

373 + x = 87 \times 5 \\ 373 + x = 435 \\ 373 + x - 373 = 435 - 373 \\ x = 62 \:  \:  \: scores

5 0
2 years ago
Find the area and perimeter. Stuck on this one need help
masya89 [10]

9514 1404 393

Answer:

  • area: 114 square units
  • perimeter: 44 units

Step-by-step explanation:

The figure is a trapezoid with bases 12 and 7, and a height of 12. The area formula is ...

  A = (1/2)(b1 +b2)h

  A = (1/2)(12 +7)(12) = 114 . . . square units area

__

The length of side AB can be found using the distance formula:

  d = √((x2 -x1)^2 +(y2 -y1)^2)

  d = √((6 -(-6))^2 +(1 -6)^2) = √(144 +25) = 13

The sum of the side lengths is then ...

  13 +7 +12 +12 = 44 . . . units perimeter

8 0
2 years ago
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