At the start of a birthday party, there are 3 times more boys than girls. after 4 boys and 4 girls left the party, there were 4 times more boys than girls. how many boys were there at the start of the party

Step-by-step explanation:

Let

x------> number of boys at the start of the party

y-----> number of girls at the start of the party

we know that

------> equation A

-----> equation B

substitute equation A in equation B and solve for y

Find the value of x

 ------>

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation: