5x+9z-x
5x-x+9z
4x+9z
Equivalent expression is asking for you to simplify by adding like terms and eliminatino parenthesis. Use the PEMDAS.
Let us say that the number of pens that Matt has is x.
Therefore the number of pen that Sarah has is:
Sarah pens = (5/4) (1/3) x = (5/12) x
So the total number of pens they have is:
total = x + (5/12) x = (17/12) x
Hence the fraction of Matts pen is:
fraction = x / [(17/12) x]
fraction = 12/17
Answer:
x=0.064
Step-by-step explanation:
subtract 7.5 from both sides of the= sign.
1.2x=.5 +9x
subtract 9x from both sides
1.2x=.5
divide both sides by 1.2
x=0.064
Answer:
Nine of the times for the first race were at least 16 seconds
Step-by-step explanation:
Here we have from the scatter plot, the times are given as
Time Frequency
19 2
18 2
17 2
16 3
15 1
Therefore, total number of times that are above 16 seconds in the first race is
3 + 2 + 2 + 2 = 9
Therefore, the first option is correct
Answer:
its what
does this help
Step-by-step explanation:
Velocity ratios are calculated by dividing the driver gear by the driven gear. The driver gear or pulley is the one connected to the power - e.g. the pedals on a bicycle or the motor. To calculate the speed of the driven gear - multiply the speed of the driver gear by the velocity ratio.
