Answer:750/x
Step-by-step explanation:
speed = distance ÷ time
= 750 ÷ x
This is an easy one.
65/5= 13.
Therefore, she descended 13 feet per minute.
Answer:
4a) 
· (5 + 7)
b) 3 ÷ (3/5)
c) ( - 
) ÷ 3
Step-by-step explanation:
We assume the two numbers are x and (x+1)
so x^2+(x+1)^2=421
x^2+(x^2+2x+1)=421
2x^2+2x-420=0
According to the formula of quadratic
x=14 or-15
cuz we know the two numbers are integers
so x=14
therefore the other number is 15
To make sure that's correct
14^2+15^2=421
Hope that helps you!!
