Answer:
45 ways
Step-by-step explanation:
We are given;
there are 3 different math courses, 3 different science courses, and 5 different history courses.
Thus;
Number ways to take math course = 3
The number of ways to take science course = 3
The number of ways to take history course = 5
Now, if a student must take one of each course, the different ways it can be done is;
possible ways = 3 x 3 x 5 = 45 ways.
Thus, number of different ways in which a student must take one of each subject is 45 ways.
Answer:
Try d .............,,.....
Interest+original=amount to pay off
intrest=prinicpal times rate times time
interest=2000 times 3 times 0.08
interest=480
so total is 2000+480 or 2480 to pay off
Answer:
Step-by-step explanation:
We have three similar triangles:
therefore the sides are in proportion:
We have AD = a, CD = 16 and BD = 4. Substitute:
<em>cross multiply</em>
and other proportion:
We have AB = b, BC = 16 + 4 = 20 and BD = 4. Substitute:
<em>cross multiply</em>
Given Number of shirts bought by Jamal in Massachusetts =4.The question is asking us to find the money spent by Jamal after paying sales tax at the rate of 5% when cost of each shirt is $16.
Cost of 1 shirt= $16
Cost of 4 shirts = 4x16=$64.
Sales tax on the shirts = 5% =0.05(in decimal form)
Sales tax on 4 shirts costing $64= 0.05x64= $3.2
Cost of shirt including sales tax= 64+3.2=67.2
Jamal spend $67.2 on purchasing the shirts.
