Answer:
I'm sorry I don't know the ratio but the whole number of students is 164 and dance students is 43 i hope this helps if not im sorry i tried to help
Step-by-step explanation:
Answer:18 , for the first one
Step-by-step explanation: because 10+8= 18
Answer:
The amount that this CD will be worth at maturity would be $935.90. The right answer is B.
Step-by-step explanation:
In order to calculate How much will this CD be worth at maturity we would have to use and calculate the formula of future value as follows:
Future Value=Present value×(1+i/n)∧nt
Future Value=$810×(1+2.9%/4)∧(4×5)
Future Value=$935.90
The amount that this CD will be worth at maturity would be $935.90
Alright, so what we can take as a given is that arcDE/2= ∠CDE=2x+20 since the arc corresponding to the angle is 2*the angle. To solve for arcDE, we multiply both sides by 2 to get 2(2x+20)=4x+40=arcDE. Since the arcs in a circle add up to 360 degrees and we only have -20+30x and arcDE, we have -20+40+4x+30x=360 using the associative property. Simplifying, we get 20+34x=340. Subtracting 20 from both sides, we get 340=34x. Next, we can divide both sides by 34 to get 10=x.
Answer:
100 sweets
Step-by-step explanation:
Let initial number of sweet = x
Monday :
2/5 of x = 2x/5
Number left = x - 2x/5 = 3x/5
Tuesday :
2/5 of remaining = 2/5 * 3x/5 = 6x/25
Number left = 3x/5 - 6/25 = 9x/25
Wednesday :
2/3 of remaining = 2/3 * 9x/25 = 18x/75
Number left = 9x/25 - 18x/75 = 9x / 75
9x/75 corresponds to 12
9x/75 = 12
Cross multiply :
9x = 12 * 75
9x = 900
x = 900 / 9
x = 100 sweets