Answer:
5
Step-by-step explanation:
7.25y = 36.25. (after adding 15 on both sides)
Then divide by 7.25 and it should come out to 5. Hope this helps! :D
Answer:
50+30z=250+10z
z=10
Step-by-step explanation:
50+30z=250+10z
Substract 50 on both sides
50+30z-50=250+10z-50
Simplify
30z=10z+200
Substract 10z on both sides
30z-10z=10z+200-10z
20z=200
200/20 = 10
Answer z=10
Answer:
1) expand the radical by seperating it according to its factors;
3
SINCE 9 is a PERFECT SQUARE WE CAN TAKE IT OUTSIDE THE RADICAL, BUT WE MUST TAKE THE SQUARE ROOT OF IT BEFORE WE CAN TAKE IT OUT OF THE RADICAL:
sqrt9=3
so
3*3
9
Answer:
speed = 0.6666667 miles per hour
Step-by-step explanation:
You can find the average speed of an object if you know the distance travelled and the time it took. The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time.
The range will NOT be affected since all we're doing is shifting everything up by 0.5, which visually means the distribution curve is shifted 0.5 units to the right. The difference between the largest and smallest value will stay the same. So that's why the range stays the same at 1.4
The mean will shift by 0.5 units if we add 0.5 to each data value, so,
New mean = (old mean) + 0.5
New mean = 3.17 + 0.5
New mean = 3.67