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Svetradugi [14.3K]
3 years ago
7

There are 16 girls in a school club. the number of girls is four more than twice the number of boys. find the number of boys.

Mathematics
1 answer:
Serhud [2]3 years ago
3 0
The number of boys . . . . . B
Twice the number of boys . . . 2B
4 more than twice the number of boys . . . 2B+4

You said that the number of girls is equal to that, so . . .  G = 2B+4

But you also told us what  G  is:  16 = 2B+4

Subtract  4  from each side:  12 = 2B

Divide each side by  2 :  6 = B

There you have it.  There are  6 boys in the club.
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7 0
3 years ago
(x+15)^2 −10=0 i need solutions
Tasya [4]

Answer:

Step-by-step explanation:

(x-15)²=10

x-15=±√10

x=15±√10

or x=15+√10

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4 0
3 years ago
Work out the area of the triangle. 13m 12m and 5m​
Advocard [28]

Answer:

30m²

Step-by-step explanation:

To find the area of a triangle, you need to ensure that the triangle is a right-angled triangle. We can use the Pythagoras Theorem to help us prove that.

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5² + 12² = 169

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By converse of Pythagoras Theorem, the triangle is a right-angled triangle.

Thus, you can directly find the area of the triangle using the formula: base × height ÷ 2.

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6 0
3 years ago
Find the value of x. Give the answer in simplest radical form.
Vilka [71]

Answer:

X = 8√2.

Step-by-step explanation:

In a 45-45-90 triangle the ratio of the sides are x:x:√2 x.

So here, x = 8 and the side X = 8√2.

8 0
4 years ago
Please help me with this question I really need now
vichka [17]
The way to do this is to divide 8 into 37, and the remainder is the fraction

37/8= 4 with 5/8 left over which is C

I hope I've helped!
6 0
3 years ago
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