Answer: a. 10%
Step-by-step explanation:
Girls in the class = 40%
Girls play tennis = 25%
Percentage of class play tennis = 40%*25% = 0.4*0.25 = 0.1
Percentage of class play tennis = 10%
Answer:
B. It is too risky to use credit cards online, and online payment services have better security because of the increasing number of hackers that may steal money from your bank account.
Step-by-step explanation:
T=32+0.33c
b.t=32+0.33c
t=32+0.33(10)
t=32+(3.30)
t=35.30
Answer:
The right choices are
Point B is plotted at negative one-half.
Point D is a rational number.
Point F is plotted at three-fourths.
Step-by-step explanation:
Let's make a number line according to the given situation. That would help us to answer the problem.
From the diagram,
Point B is plotted at negative one-half.
Point D is a rational number.
Point F is plotted at three-fourths are correct!
Answer:
The distance is D. 21.25 ft.
Step-by-step explanation:
This is an example of a distance problem: <em>Find the distance traveled by an object during certain time period if the velocity of the object is known at all times.</em>
We are given a table of values for time and speed
![\left\begin{array}{cccccc}t(sec)&0&0.5&1&1.5&2\\Speed (ft/sec)&0&5.1&9.3&12.5&15.6\end{array}\right](https://tex.z-dn.net/?f=%5Cleft%5Cbegin%7Barray%7D%7Bcccccc%7Dt%28sec%29%260%260.5%261%261.5%262%5C%5CSpeed%20%28ft%2Fsec%29%260%265.1%269.3%2612.5%2615.6%5Cend%7Barray%7D%5Cright)
If the speed remains constant, then the distance problem is easy to solve by means of the formula
distance = speed x time
Therefore, the total distance is
![distance = 5.1\cdot 0.5+9.3\cdot 0.5+12.5\cdot 0.5+15.6\cdot 0.5\\distance = 21.25 \:ft](https://tex.z-dn.net/?f=distance%20%3D%205.1%5Ccdot%200.5%2B9.3%5Ccdot%200.5%2B12.5%5Ccdot%200.5%2B15.6%5Ccdot%200.5%5C%5Cdistance%20%3D%2021.25%20%5C%3Aft)