R(B+T)=E because you first have to add T to both sides then multiply R to cancel out the division sign
Answer:
300
Step-by-step explanation:
Sum the parts of the ratio, 3 + 4 = 7 parts
Divide the total by 7 to find the value of one part of the ratio.
700 ÷ 7 = 100 ← value of 1 part of the ratio, thus
3 parts = 3 × 100 = 300 ← number of girls
4 parts = 4 × 100 = 400 ← number of boys
<em>Question:</em>
<em>Haydin chooses a jersey at random and then replaces it. He then selects a second jersey at random. What is the probability that Haydin selects a striped jersey both times. 2 are striped,5 are colored and 3 are white.</em>
Answer:

Step-by-step explanation:
Given



Required
Determine the probability that both selections are stripped
This is calculated as:






For this case we have the following fusions:

We must find 
By definition:

The domain of the function will be given by all the values for which the function is defined, that is, all real numbers except zero.
Answer:
(-∞, 0) U (0,∞)
Answer: c
Step-by-step explanation: