Answer:
40
Step-by-step explanation:
The number of girls is represented by 3 parts of the ratio.
Divide number of girls by 3 to find value of one part of ratio.
= 5 ← value of 1 part of ratio, thus
5 parts = 5 × 5 = 25 ← number of boys
Total members = 15 + 25 = 40
Answer:
The equation can be used to determine the amount of money S(t) that her savings account has after t years is
Step-by-step explanation:
A student invests $500 in a savings account
Principal = $500
Rate of interest = 4% = 0.04
We are supposed to find equation can be used to determine the amount of money S(t) that her savings account has after t years
Formula :
Where A is the amount after t years =S(t)
t = time
r = rate of interest in decimals =0.04
P = Principal=500
Substitute the value in the formula :
So,
Hence The equation can be used to determine the amount of money S(t) that her savings account has after t years is