Answer:
b=-8
Step-by-step explanation:
9+1/4b=7
-2=1/4b
b=-8
Answer:
it would be 75
Step-by-step explanation:
4500/60
We know that
[area of larger triangle]=[scale factor]²*[area of smaller triangle]
[scale factor]=√[area of larger triangle/area of smaller triangle]
[scale factor]=√[49/16]-----> 7/4
Part A) <span>what is the ratio of the corresponding side lengths?
the ratio </span>of the corresponding side lengths is equals to the scale factor
the answer Part A) is
the ratio of the corresponding side lengths is 7/4
part B)what is the ratio of the perimeters?
the ratio of the perimeters is equals to the scale factor
the answer Part B) is
the ratio of the perimeters is 7/4
"a rise of a quarter from last year" means the percentage went up by 25%
x = old value
x + 25% of x = x + 0.25x = 1.25x = new value = 0.25 since "1 in 4" means 1/4 = 0.25
So,
1.25x = 0.25
x = 0.25/1.25
x = 0.2
x = 2/10
x = 1/5
Answer: The fraction of families that owed money is 1/5, or 1 in 5.
