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nydimaria [60]
3 years ago
15

5/7, solve for n, explain please

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
5 0

Answer:

n = 4.5

Step-by-step explanation:

8/3 = 12/n

12 ÷ 8 = 1.5

3 × 1.5 = 4.5

Paraphin [41]3 years ago
5 0

Answer:

n=4.5

Step-by-step explanation:

We can solve using cross products

8*n = 3 *12

8n = 36

Divide each side by 8

8n/8 =36/8

n =4.5

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s344n2d4d5 [400]
N would be 6 for this one
5 0
3 years ago
Read 2 more answers
Find angle ADB of the equation
Aloiza [94]

Answer:

m\angle ADB = 59\°.

Step-by-step explanation:

Given:

\angle BDC = 31\°

We need to find \angle ADB.

Solution:

Now we can see that given figure is a rectangle with diagonals drawn in it.

So by properties of rectangle which states that;

"All angles of a rectangle are 90°."

So we can say that;

\angle A = \angle B = \angle C = \angle D = 90\°

But

\angle D = \angle BDC + \angle ADB

Substituting the values we get;

31\°+\angle ADB = 90\°

Subtracting both side by  by 31 we get;

31\°+\angle ADB -31\°= 90\°-31\°\\\\m\angle ADB = 59\°

Hence m\angle ADB = 59\°.

8 0
4 years ago
Find the area of an equilateral triangle of the height of the triangle is 15cm
Gennadij [26K]

Answer:

129.9 cm^2

Step-by-step explanation:

You can use the Law of Sines to find the hypotenuse. Because it's an equilateral triangle, it's the same value for the base. If you plug in the proper angles, being 90 degrees and 60 degrees because it's an equilateral triangle, the value of the base should be 17.32050808, or 17.32 if we're rounding. If you use the usual formula for finding the area of a triangle, b * h / 2 to get an answer of 129.9 cm^2. Hope this helps and isn't too confusing! There's a bunch of lessons on Khan Academy if you need more help!

This is a bit advanced for middle school, so we might be missing some information.

7 0
3 years ago
Consider two people where one person is 25​% taller than the other but proportioned in exactly the same way.​ (That is, the tall
egoroff_w [7]

Answer:

46.25

Step-by-step explanation:

If they are proportioned exactly the same, then everything on the taller person is <em>25%</em> larger

<em>37*1.25</em> (for them being <em>125%</em> the size of the smaller person)

46.25

4 0
3 years ago
Find the value of x.<br> x= 2.<br> x= 3<br> x= 33<br> x= 52
pshichka [43]

Answer: x=2

57+x=25x

subtract x from both sides

57+x-x=25x-x

57=24x

divide by 24 on both sides

57÷24=24x÷24

x=2.375

I hope this is good enough:

6 0
3 years ago
Read 2 more answers
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