Answer:
20
Step-by-step explanation:
Simplify both sides of the equation.
−4=
r
20
−5
−4=
1
/20
r+−5
−4=
1
/20
r−5
Flip the equation.
1
/20
r−5=−4
Add 5 to both sides.
1
/20
r−5+5=−4+5
1
/20
r=1
Multiply both sides by 20.
20*(
1
/20
r)=(20)*(1)
r=20
The ratio of perimeters is the same as the ratio of the corresponding sides: 8:9.
_____
Any corresponding length measures of the similar figures will have the same ratio.
4x+7=x+10
3x+7=10
3x=3
x=1
PLZ Make Me Brainliest
Easy this answer is going to be 0.517 you can read and round