A motorist drove 150 miles in the morning and;
50 miles in the afternoon
His average rate in the morning was twice his average rate in the afternoon
He spent 5hrs driving
Let the times spent driving in the morning be x
Average speed = Distance ÷ time
= 2(
)
Cross multiplying gives;
750 - 150x = 100x
250x = 750 , x =3
Average speed in the morning is 150/3 = 50miles/hr
Average speed in the afternoon = 50/(5-3) = 25miles/hr
Answer:
C) 48
Step-by-step explanation:
I'm using the PEMDAS method which means Parenthesis, Exponents, Multiplication, Division, Addition & Subtraction (its basically a way to order it)
Here we only got an exponent, a multiplication, and finally additions. So we start solving in that order.
3^3 + 1 * 9 + 12
27 + 9 + 12
26 + 12
48
Hope this helped
Answer:
the square root of 145
Step-by-step explanation:
D= square root[(y2-y1)^2 + (x2-x1)^2]
D=square root[(5+4)^2 + (5+3)^2]
D=square root[(9)^2 + (8)^2]
D=square root[81 + 64]
D=square root[145]
Answer:
I put the answers in the picture below!
Step-by-step explanation:
Answer:
idk
Step-by-step explanation:
