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Black_prince [1.1K]
2 years ago
6

D. 9x-X+5x =260 Bx= 200

Mathematics
1 answer:
yan [13]2 years ago
8 0

Answer:

We first must solve for x

9x-x+5x=260\\13x=260\\x=30

When we have x, we put it in to the second equation

Bx=200\\\\B=\frac{200}{x} \\\\B=\frac{200}{30}\\\\B=\frac{20}{3}

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Find the measures of all of the angles.
irga5000 [103]

Answer:

a:

1. ABC = 60°

2. BCA = 90°

3. CAB = 30°

b:

XVR = WVS = 125°

RVS = 55°

RST = VSU = 110°

RSV = UST= 70°

TUS = 39°

Step-by-step explanation:

a:

According this is a Right Triangle ( BCA = 90°) and the sum angles of a triangle is 180° :

90+5x+9x+6=180

14x=84

x=6

Then we have : ABC = 9(6)+6 =60

CBA = 5(6)=30

b :

Given that the size of the opposite angles to a vertex are equal and the sum of the interior angles of a triangle is 180 degrees, the size of all angles can be easily found.

8 0
2 years ago
20 is what percent of 52
Maslowich
The process here is finding out the smallest number's % towards the largest number.

Divide 20 by 52:
20/52 = 0.38 (estimated) | This is the % in decimal form, which is 38%.

Conclusion: 20 is 38% of 52.

{---Further Elaboration for Future Reference---}

Finding the Smallest Number:

What number is 25% of 60?

Multiply 60 by the decimal form of 25%.
60 * 0.25 = 15 | 15 is 25% of 60.

Finding the Percentage. (Like what we already did.)

30 is what percent of 150?

Divide 30 by 150.
30/150 = 0.2 | 30 is 20% of 150.

Finding the Largest Number.

12 is 30% of what number?

Divide 12 by the decimal form of 30%.
12/0.3 = 40 | 12 is 30% of 40.

I hope this helps, have a great rest of your day! ^ ^
| | Ghostgate | |
5 0
3 years ago
Read 2 more answers
A triangle has one side that is 5 inches long and the other two sides are both of length x. Write an expression for the perimete
earnstyle [38]

Let P = perimeter

P = 3x + 5

Let x = 10

P = 3(10) + 5

P = 30 + 5

P = 35

4 0
3 years ago
Help on the 10th question please!!
Svetlanka [38]

Answer

2336.5719? more

Step-by-step explanation:

17407*0.09= 1566.63

17407+1566.63=17973.63

17973.63*0.13= 2336.5719

2336.5719+17973.63=20310.2019

20310.2019-17973.63=2336.5719

3 0
2 years ago
If x is too small that its square and higher powers be neglected then (1+3x)-2=?
Molodets [167]

The answer is 3x - 1.

7 0
3 years ago
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