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g100num [7]
2 years ago
7

Can anyone help me on this one? Thank you in advance!

Mathematics
1 answer:
vampirchik [111]2 years ago
7 0

\bf \cfrac{4}{2(x-3)}=\cfrac{5}{3(14-x)}\implies \stackrel{\textit{distributing in the denominators}}{\cfrac{4}{2x-6}=\cfrac{5}{42-3x}} \\\\\\ 4(42-3x)=5(2x-6)\implies \stackrel{\textit{distributing again}}{168-12x=10x-30}\implies 198=22x \\\\\\ \cfrac{198}{22}=x\implies \boxed{9=x}

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Find the length of YX
koban [17]

Answer:

YX = 22

Step-by-step explanation:

Similar triangles. So,

\frac{VW}{XW}=\frac{VZ}{YX}\\\\\frac{45}{30}=\frac{3x-9}{x+8}\\

Cross multiplication

45*(x+8) = 30 * (3x - 9)

45x + 360 = 90x - 270

360 = 90x - 270 - 45x

360 = 45x - 270

360 + 270 = 45x

45x = 630

x = 630/45

x = 14

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3 years ago
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tatiyna
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4 0
2 years ago
What is equivalent to 7/8+9/15
Xelga [282]

Answer:

Depends where the parenthesis are. But if you solve it using PEMDANS it's 1.475.

Step-by-step explanation:

When solving something like this, you use PEMDAS, sometimes known as GEMDAS and solve it in this order.

P/G=Parenthesis

E= Exponents

M= Multiplication

D= Division

A= Addition

S= Subtraction.

So skip P, E, M, and S because there are no parenthesis, exponents, multiplication, or subtraction signs.

So 7/8=0.875. 9/15=0.6, and if you add those you get 1.475

6 0
2 years ago
If the 1st and 10th terms of geometric sequence are 4 and 100. Fine the nth term of the sequence
gulaghasi [49]
A(n)=ar^(n-1)  so

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3 0
3 years ago
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WITCHER [35]

Answer:

Sorry there is no solution

Step-by-step explanation:

There is not way to find the area with out other information.

7 0
3 years ago
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