Question 1: A, a triangular prism
You can tell that it’s a triangle prism because a pyramid would have a square in the middle, not a triangle
Question 2: 20ft
Horse a travels 32 feet per second and horse b travels 28 ft per second. To find how far they Travis’s after 5 seconds you multiply by 5 because 1 (second) x 5 is 5 seconds
Horse a: 32 x 5 = 160
Horse b: 28 x 5 = 140
To fin how much further horse a tracked subtract.
160 - 140 = 20
So horse a traveled 20 more ft
Question 3: 80 nickels, 120 dimes, and 300 quarters
For every 2 nickels there are 3 dimes and for every 2 dimes there are 5 quarters
Let the number of nickels be n. Then the number of dimes is 3/2 n. There are 5/2 as many quarters as dimes, so there are 5/2 * 3/2 = 15/4 as many quarters as nickels = 15/4 n thus the number of nickels, dimes and quarters is
n + 3/2 n + 15/4 = 4/4 n + 15/4 n = 25/4 n
25/4 n = 500
n = 500 * 4/25 = 80
d = 3/2 n = 3/2* 80 = 120
q = 15/4 n = 15/4 * 80 = 300
So
80 nickels, 120 dimes, and 300 quarters
How much are the coins in the piggy bank worth?
Nickel = 5 cents
Dime = 10 cents
Quarter = 25 cents
4 quarter make a dollar so divide the # of quarter by 4
300 divided by 4= $75
20 nickels make a dollar so divide the # of nickels by 20
80 divided by 20 = $4
10 dimes make a dollar so divide the # of dimes by 10
120 divided by 10= $12
Add
75 + 4 + 12 = $91
Do the answer to part be is $91
Question 4: $51.96
If 3 books is 12.99 we need to find out how much one is. So we divide 12/89 by 3
12.99 divided by 3 = 4.33
So one book is $4.33. Now we need to find out how much 12 books cost. So multiply 4.33 by 12.
4.33 x 12 = $51.96
(Hope this helps)