Answer:
cars rate of speed: 45 mph
Part B: d=45t
Step-by-step explanation: d=rt formula
r=45
585/13=45
Answer:a.100+(hx25)
b.120+(hx20)
c.4 hours
h=hours
Step-by-step explanation:
Let's assume two variables x and y which represent the local and international calls respectively.
x + y = 852 = total number of minutes which were consumed by the company (equation 1)
0.06*x+ 0.15 y =69.84 = total price which was charged for the phone calls (Equation 2)
from equation 1:-
x=852 -y (sub in equation 2)
0.06 (852 - y) + 0.15 y =69.84
51.12 -0.06 y +0.15 y =69.84 (subtracting both sides by 51.12)
0.09 y =18.74
y= 208 minutes = international minutes (sub in 1)
208+x=852 (By subtracting both sides by 208)
x = 852-208 = 644 minutes = local minutes
Answer:
Chuck travels as 63mph
Step-by-step explanation:
Answer:
see the explanation
Step-by-step explanation:
we know that
using a calculator
Compare the numbers
Seven an eighth is greater than the square root of fifty.
or
Square root of fifty is less than seven an eighth
