Find the value of the expression below for x=10 x ^2 - 2 (x + 5)
2 answers:
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Answer:
The equation would be .
Allen will Run for 2 hours.
Step-by-step explanation:
Given:
Total Distance traveled = 30 miles
Average rate of walking = 3 mi/hr
Average rate of running = 9 mi/hr
Time for walking = 4 hours
W need to find the time for running.
Solution:
Let Number of hrs required for running be 'x'.
Total Distance traveled is equal Distance Traveled in walking plus Distance traveled in Running
But Distance is equal Rate multiplied by Time.
Framing in equation form we get;
Hence Total Distance Traveled = Rate of walking × Hours of walking + Rate of Running × Hours of running.
Substituting the values we get;
Hence The equation would be
Solving above equation we get;
Hence Allen will Run for 2 hours.
Answer:
The Supersmack gum has a volume of cm^3 or
cm^3. So, Supersmack's cylindrical bubble gum has more actual gum than the Megapop gumball
Step-by-step explanation:
Assuming that the radius of the Megapop gumball is 1.5 (the same diameter as Supersmack)
The volume of the cylinder's equation can be written as
This simplifies to
cm^3 or
cm^3
The volume of the gumball's equation can be written as
This simplifies to
cm^3 or
cm^3
The Supersmack gum has a volume of cm^3 or
cm^3. So, Supersmack's cylindrical bubble gum has more actual gum than the Megapop gumball