Answer:
1. she subtracted 4 from 20 when she was supposed to add it and get 24
4x-4=20
4x=24
x=6
Step-by-step explanation:
2. x+8_>5
what plus 8 equals a number equal to five
that would be -3
and any number above that since it is saying that the number can be equal to or greater than 5 when it is added together with 8
That the best way I can show my work.
Answer:
5 yd
Step-by-step explanation:
Use Pythagorean theorem,
Hypotenuse² = base² + altitude²
= 3² + 4²
= 9 + 16
= 25
Hypotenuse = √25 = √5*5 = 5 yd
Answer:

Step-by-step explanation:
Given,
The number of miles she walks every day = 
∵ 1 week = 7 days,
⇒ 1 day =
week,
Thus,
The number of miles she walks
week= 
⇒ The number of miles she walks in a week = 
Answer:
254.47
Step-by-step explanation:

Answer:
3/50
Step-by-step explanation:
It's not as hard as you might think! You can just multiply the denominator and numerators separately. So in this case, you just need to do 9*1 and 25*6. This means that the answer is just 9/150, simplify it and you get, 3/50!