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Leona [35]
3 years ago
10

[(4x + 15) / 5x)] = 1/2

Mathematics
1 answer:
Arada [10]3 years ago
6 0
One way in which to approach this problem would be to treat it as an equation of ratios and to cross multiply:

<span>[(4x + 15) / 5x)] = 1/2  could be written as:

4x + 15        1
----------- =  ---
     5x           2

Then 8x + 30 = 5x

3x = -30,  and so     x = -10 (answer).  Be certain to check this answer through substitution!

</span>
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How do I do the bus stop method?
hichkok12 [17]
The bus stop method is just like division.
Ex
137÷5= 
1.) 5 goes into one zero times so there is a zero on top.
2.) 5 goes into 13 two times, so after the zero there is a 2.
3.) 5 goes into 37 seven times so there is a 7 after the 2.
4.) There is a 2 left and five can't go into school therefore that is a remainder.

    027R2
5/137
  <u>- 10</u>
     37
   <u>-35</u>
       2
Hoped I helped:D

6 0
4 years ago
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
State the rule that will result in the transformation below.<br> (x,y) maps to (?, ?)
Anna [14]

Answer:

(x,y) maps to (-y,x).

Step-by-step explanation:

Use vertex I as an example.

Pre-image I is graphed at point (-3,2), while image I' is graphed at point (-2,-3) .

In order to change between these points, the x and y coordinates must be swapped, as well as multiplying the y coordinate by -1.

8 0
3 years ago
Average of 34 and 68 ?
Novosadov [1.4K]
We take the numbers, add them together, then divide by the how many numbers there are:

(34 + 68) / 2 
(102) / 2
51
4 0
3 years ago
Read 2 more answers
Provide your steps!!<br> •••••••••••••••••••••••••
atroni [7]

Answer:

946 ft²

Step-by-step explanation:

28 x 7 = 196

30 x 25 = 750

750 + 196 = 946 ft²

5 0
3 years ago
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