2 answers:
Answer:
x=4.5
Step-by-step explanation:
The triangles are similar (bases are parallel so bottom angles are equal (corresponding), hence they're similar by AA)
Since they're similar, their sides are in ratio:
(x+6)/(x+x+6)=(30-9)/(30)
(x+6)(30)=(2x+6)(21)
30x+180=42x+126
12x=54
x=4.5
Answer:
Assuming the other side is 30, x=12
Step-by-step explanation:
X+(X+6)=30
2x+6=30 (open the brackets by distributing the plus sign inside)
2x=24 (subtract 6 from both sides)
x=12 divide both sides by 12
This makes sense because of x is 6, and x+6 is 18, 6+18=30.
You might be interested in
Answer:
Parallelogram
Step-by-step explanation:
Give the most specific classification for quadrilateral ABCD: parallelogram, rhombus, a rectangle, or square.
Answer:
in order:
Step-by-step explanation:
Answer:
The sales account for year 3 is ![[\frac{32\ \text{mn}-x\ \text{mn}}{x\ \text{mn}}\times 100\%]](https://tex.z-dn.net/?f=%5B%5Cfrac%7B32%5C%20%5Ctext%7Bmn%7D-x%5C%20%5Ctext%7Bmn%7D%7D%7Bx%5C%20%5Ctext%7Bmn%7D%7D%5Ctimes%20100%5C%25%5D)
.
Step-by-step explanation:
As the sales for year 2 is not provided, assume it is <em>x </em>million.
The total sales in year 3 is, 32 million.
Compute the sales account for year 3 as follows:
Answer:
The sum of the measures of the exterior angles of a convex polygon is 360 degrees.
Step-by-step explanation:
Answer:
w=14
Step-by-step explanation:
-8(w + 1) = -5(w + 10)
Remove the parentheses
-8w-8+-5w-50
Move terms
-8w+5w=-50+8
Collect like terms and calculate
-3w=-42
Then divide on both sides
