Answer:
Step-by-step explanation: was uuu
Let s represent the number of students surveyed.
.. 0.40s play baseball
.. 0.60*(0.40s) play soccer and baseball
.. 0.60*0.40s = 12 . . . . . . . 12 students play soccer and baseball
.. s = 12/(0.60*0.40) = 12/0.24 = 50
Jonah surveyed 50 students.
_____
This is the number of students required to match Jonah's calculations.
Answer:
1⅗
Step-by-step explanation:
=44/5÷11/2
when two fractions are dividing,turn the division sign into multiplication sign and take the reciprocal of one fraction.That is,in one fraction let the numerator become the denominator and the denominator become the numerator
=44/5×2/11
then 11 goes into forty-four. 4
therefore
=4/5×2/1
=8/5
=1⅗
The number of ants in his farm after 12 weeks is 218.
Step-by-step explanation:
Step 1:
It is given that there are 15 ants initially and the ant population increases by 25% each week.
This is an exponential rate of increase that can be modeled by the following equation:
Number of ants after n weeks = Initial number of ants * 
Step 2:
Rate of increase = 25% = 25 / 100 = 0.25
Number of weeks = 12
Number of ants after 12 weeks = 15* 
= 218.27 (rounded off to 218)
Step 3:
Answer:
The number of ants in his farm after 12 weeks is 218.
Take y2-y1 over x2-x1 to get the slope of the line
2-5/2-6
-3/-4
3/4
