2 years ago

What is the sum of twice a number and 13 is 75

Mathematics

1 answer:

photoshop1234 [79]2 years ago

7 0

Equation- 2n+13=75
n is 31
Hope this helped.

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Solve the right triangle ABC with right angle C if B = 30° and c = 10.

mart [117]

Step-by-step explanation:

Answer:

Last choice is correct.

Step-by-step explanation:

Given that ∠C=90°, ∠B=30°, c=10

We know that sum of all angles in a triangle is 180 degree.

∠A+∠B+∠C=180°

∠A+∠30°+∠90°=180°

∠A+∠120°=180°

∠A=60°

Now we can use sin or cos whichever applicable to find missing sides

2b=10

b=5

Similarly

a=8.6602

Hence last choice is correct.

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3 years ago

A summer camp cookout is planned for the campers and their families. There is room for 200 people. Each adult costs $4, and each

Nikolay [14]

Answer:

brainly.com/question/12896085

Step-by-step explanation:

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2 years ago

The sum of a number and five is seventeen what is the number?

RoseWind [281]

The number would be 12

4 0

3 years ago

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LOTS OF POINTS!! A cyclist rides a 25 mile stretch of road at a constant speed. It takes her 90 minutes to ride the 25 miles . A

sattari [20]

25m/90minutes = .278 mile/minute

Divide 25/90 to get .278

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7 0

2 years ago

Given that ABCD is a rhombus, what is the value of x?<br>(3x - 26)

ExtremeBDS [4]

<h2>The required "option B) $20.75\°$ " is correct.</h2>

Step-by-step explanation:

You can refer figure:

brainly.com/question/4386376

To find, the value of x = ?

We know that,

Consecutive angles are supplementary

The diagonals bisect the angles.

$2x\°+2(3x+7)\°=180\°$

Divided by 2 both sides, we get

⇒ $x\°+(3x+7)\°=90\°$

⇒ $x\°+3x+7\°=90\°$

⇒ $4x=90\°-7\°$

⇒ 4x = $83\°$

⇒ $x=\dfrac{83\°}{4}$

⇒ $x=20.75\°$

∴ The value of x = $20.75\°$

Thus, the required "option B) $20.75\°$ " is correct.

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2 years ago

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