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Doss [256]
4 years ago
12

4/9x+1/5x=87 what is x

Mathematics
2 answers:
Natali5045456 [20]4 years ago
5 0
First you need to find a common denominator.

20/45x + 9/45x = 87

Combine like terms.

29/ 45x = 87

Multiply both sides by 45/29

x = 3,915 / 29

x = 135

Hope this helps!
IceJOKER [234]4 years ago
3 0

Answer:

The value of x is 135.

Step-by-step explanation:

Given : Expression \frac{4}{9}x+\frac{1}{5}x=87

To find : What is the value of x?

Solution :

Expression \frac{4}{9}x+\frac{1}{5}x=87

Take LCM,

\frac{4x\times 5+x\times 9}{9\times 5}=87

\frac{20x+9x}{45}=87

\frac{29x}{45}=87

x=\frac{87\times 45}{29}

x=135

Therefore, The value of x is 135.

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Please answer this in two minutes
diamong [38]

Answer:

366.6 mm²

Step-by-step explanation:

Step 1: find XY using the Law of sines.

Thus,

\frac{XY}{sin(W)} = \frac{WY}{sin(X)}

m < W = 180 - (70+43) (sum of angles in a triangle)

W = 180 - 113 = 67°

WY = 24 mm

X = 43°

XY = ?

\frac{XY}{sin(67)} = \frac{24}{sin(43)}

Cross multiply:

XY*sin(43) = 24*sin(67)

XY*0.68 = 24*0.92

Divide both sides by 0.68 to solve for XY

\frac{XY*0.68}{0.68} = \frac{24*0.92}{0.68}

XY = 32.47

XY ≈ 32.5 mm

Step 2: find the area using the formula, ½*XY*WY*sin(Y).

Area = ½*32.5*24*sin(70)

Area = ½*32.5*24*0.94

= 32.5*12*0.94

Area = 366.6 mm² (nearest tenth)

6 0
3 years ago
What is the EQUATION of a HORIZONTAL LINE passing through THE POINT (-7, 5)?
Dennis_Churaev [7]

Answer:

<h2>A. y = 5</h2>

Step-by-step explanation:

A horizontal line has an equation: y = a  (a - any real number).

Each point on a horizontal line y = a, has coordinates (x, a)    (x - any real number).

We have the point (-7, 5) → y = 5

8 0
4 years ago
Which expression has the least value when x = 100<br><br>A. 1/x<br>B. 10/x<br>C. 1-x<br>D. 10-x​
noname [10]

Answer:

C. 1-x

Step-by-step explanation:

Negatives are alwys less than positives meaning a&b are out and 1-100 is -99 and 10-100 is -90 meaning that C is your answer

6 0
3 years ago
How many grams are in 8 kilograms?
shutvik [7]
I believe it is 8,000 grams :).
5 0
3 years ago
Maria has 39 books in her library she bought several books at a yard sale over the weekend she now has 70 books in her library h
klio [65]
So 39 books and it must equal 70. So 39 + ___ = 70 or, to make it a bit simpler, 70 - 39 = ___. You should be able to do that.
5 0
4 years ago
Read 2 more answers
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