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Vadim26 [7]
2 years ago
7

2/5x+10=30 a- x=100 b-x=12 c-x=50 d-x=16

Mathematics
2 answers:
garri49 [273]2 years ago
6 0

Answer:

C: x=50

Step-by-step explanation:

Sever21 [200]2 years ago
3 0

Answer:

x=50

Step-by-step explanation:

x in (-oo:+oo)

(2/5)*x+10 = 30 // - 30

(2/5)*x-30+10 = 0

2/5*x-20 = 0 // + 20

2/5*x = 20 // : 2/5

x = 20/2/5

x = 50

x = 50

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12 − 7 = 2(3 + 5) + 6 − 17
larisa [96]

It equals 5- hope this helps---

5 0
3 years ago
Please help with maths (3)
sergeinik [125]
The answer is 42


first change the numbers from scientific notations into numbers.

1.47*10^7= 14700000

3.5*10^5= 350000

now divide the number of sweets by the number of packets. the quotient is the answer

14700000/350000= 42

good luck
5 0
3 years ago
PLEASE HELP...What is “b” ?
Vitek1552 [10]
<h2><em>Answer:</em></h2><h2><em>1</em><em>5</em><em>8</em><em>°</em></h2>

<em>Solution</em><em>,</em>

<em>B+</em><em>2</em><em>2</em><em>=</em><em>1</em><em>8</em><em>0</em><em>°</em>

<em>or,</em><em>b=</em><em>1</em><em>8</em><em>0</em><em>-</em><em>2</em><em>2</em>

<em>b=</em><em>1</em><em>5</em><em>8</em><em>°</em>

<em>Hope </em><em>it </em><em>helps</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

3 0
3 years ago
Read 2 more answers
an airplane is flying at the height of 10 km above the ground the distance along the ground from the airplane to the airport is
erik [133]

The angle of depression from the aeroplane to the ground​ will be 30 degrees.

<h3>What is trigonometry?</h3>

Trigonometry is the branch of mathematics which set up a relationship between the sides and angle of the right-angle triangles.

Given that:-

  • An aeroplane is flying at the height of 10 km above the ground the distance along the ground from the aeroplane to the airport is 10√3 km

The angle of depression will be calculated as the angle between the horizontal and the height of the plane as shown in the figure below.

As we know that the perpendicular theta is height and the base ratio is angle tan theta.

tanФ = Height / Base

tanФ  = 10 / 10 √3

tanФ = 1 / √3

Ф = tan⁻¹( 1 / √3 ) = 30°

Therefore the angle of depression from the aeroplane to the ground​ will be 30 degrees.

To know more about Trigonometry follow

brainly.com/question/24349828

#SPJ1

6 0
2 years ago
5. If possible, find the missing side length labeled with a question mark. If no possible,explain why
lawyer [7]

Answer:

10

Step-by-step explanation:

I think is 10 because they are different triangles but both with the same measure, as you can see both angles are the same [36] and both sides of the triangle too [6] so when you divide the base [20] by 2 , 20÷2=10

3 0
2 years ago
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