Speed = distance/time
speed = 38.4 / 6 = 6.4 km per hr
Answer:
6/5
Step-by-step explanation:
5x + 14 = 20
Subtract 14 from 20
5x = 6
Divide both sides by 5
x = 6/5
Answer:
-56
Step-by-step explanation:
f(x) = 7x + 7
x = -9
We meed to plug in x = -9 into the first equation:
f(-9) = 7(-9) + 7
We can open up the parentheses:
f(-9) = -63 + 7
And then simplify:
f(-9) = -56
Answer:
As per the statement:
Mr. Roseanne will buy 
pounds beef for for a cookout.
⇒ Weight of the beef he buy = 
pounds.
It is given that:
The price for the first 3 pounds of beef is $4.99 per pound.
then;
the price for 3 pounds he will pay= 
After that, the price is $4.49 per pound.
Remaining weight of beef left = 
pounds.
then;
the price of 
pounds he will pay = 
now, total money he will pay for the pounds beef = 
Therefore, $57.625 will Mr. Roseanne pay for the beef
The equation of the area of a triangle is Area=Length×Width. We know area=256.5 and length is 18. So now we know 256.5=18×width. We then divide 256.5÷18 to get the width. The width is 14.25. Perimeter=legth+length+width+width. If width is 18 and length is 14.25 then we add up all 4 sides. 18+18+14.25+14.25=64.5. 64.5 is the perimeter
