-2 2/5 is the answer to question
With the rule of three
100% = 29.85
6% = ? So. (6 times 29.85)÷100= 1.79
29.85 + 1.79 = 31.64
100% = 31.64
15% = ? Soooooo. (15(31.64)) ÷ 100 =
Vivian problem: If her highest score is 42 points higher than her lowest score, just subtract 42 from 438. The answer is 396.
Concert problem: let w=women and 2w=men. your equation would be: w+2w=714
3w=714
w=238. There were 238 women.
Park problem: let the length=3w and the width=w. so, to find w, you would have to divide by 3, and since the length is 123, do (your equation would be 3w=123) 123/3 which would give you 41 ft for the width.
Darwin's age: let darwin's age=2f+6 and fiona=f. If darwin's age=50, then set 2f+6=50
2f=44
f=22. Fiona's age is 22 years.
Answer:
13
Step-by-step explanation:
It is a parallelogram so the opposite angles are the same.
All angles sum to 360 degrees.
This means that the adjacent angles sum to 180 degrees.
4a + 11 + 9a = 180 = 13a + 11
13a = 169
a=13
Remember:
a) (x,y) => (x, -y) is a reflection across X axis
b) (x,y) => (-x,y) is a reflection across Y axis
Here △RST is mapped to △R′S′T′ using the rule (x,y)→(x,−y)
Hence it is a reflection across X axis.
The size of the triangle does not alter.
But when this is followed by (x,y)→(3x,3y), the lengths increase by a factor 3.
Hence the triangles do not remain congruent.
△RST is not congruent to △R′S′T′ because the rules do not represent a sequence of rigid motions.
Option A) is the right answer