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max2010maxim [7]
3 years ago
7

HELP, IT'S URGENT SO PLEASE REPLY QUICKLY!

Mathematics
1 answer:
ehidna [41]3 years ago
5 0

b.  39.74

the answer for b

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Solve the proportion: 5/x+7=3/x+3
Allushta [10]

Answer:

x=3

Step-by-step explanation:

cross multiply

5(x+3)=3(x+7)

5x+15=3x+21

5x+15-3x=3x+21-3x

2x+15=21

2x+15-15=21-15

2x=6

x=3

7 0
2 years ago
In the coordinate plane, what is the length of the line segment that connects points at (5, 4) and (−3, −1) ? Enter your answer
stiks02 [169]
The distance between two points knowing theirs coordinates:

AB =√[(x₂-x₁)² +(y₂-y₁)²]; ===>A(5,-4) & B(-3,-1) Given
                                                A(x₁,y₁) & B(x₂,y₂)

AB =√[(-3-5))²+(-1-(-4)²] =√(73) = 8.381 ≈ 5.44 units
3 0
2 years ago
What is <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B7%7D%20%20%3D%20%20%5Cfrac%7B4%7D%7B5%7D%20" id="TexFormula1"
frosja888 [35]

Multply both sides of the equation by 7.

\dfrac{x}{7}\cdot 7=\dfrac{4}{5}\cdot 7\\\\x=\dfrac{28}{5}=5.6

_____

When the variable is in the numerator of a proportion like this, you can solve it by multiplying by that denominator. That multiplication cancels the denominator and gives you the value of the variable.

In general, you multiply by the reciprocal of the coefficient of x. When that coefficient is 1/7, you multiply by 7/1. Of course, you know that 7/7 = 1 and that x/1 = x.

7 0
3 years ago
A survey was conducted on 37 people so find out the colours that they like. It was found that 20 people like red, 22 people like
Lana71 [14]
(20 + 22 + 17) - 7 - 12 - (9 - x) = 37;

59 - 19 - 9 + x = 37;

31 + x = 37;

x = C) 6
8 0
3 years ago
What is m∠VWX? 75° 69° 119° 25°
Bogdan [553]

Answer:

Step-by-step explanation:

Sum of interior angles of a triangle = Exterior angle

m∠VWX + m∠WVX = Exterior angle = 155°

m∠VWX + 86° = 155°

m∠VWX = 69°

6 0
2 years ago
Read 2 more answers
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