The 31st term of this sequence is 189.
9, 15, 21, 27, 33 (5), 39, 45, 51, 57, 63 (10), 69, 75, 81, 87, 93 (15), 99, 105, 111, 117, 123 (20), 129, 135, 141, 147, 153 (25), 159, 165, 171, 177, 183 (30), 189.
1 nickels =$0.05
1 dime= $0.1
let the number of nickels be x and that of dimes be y.
total number of coins is given by:
x+y=42
hence:
y=42-x.......i
total amount of cash will be:
0.05x+0.1y=3.30.........ii
substituting i in ii we get:
0.05x+0.1(42-x)=3.30
0.05x+4.2-0.1x=3.3
-0.05x=-0.9
x=-0.9/(-0.05)
x=18
hence the the number nickels is x=18, the number of dimes will be y=42-x=42-18=24
Answer:
Step-by-step explanation:
38 quarts
Answer:
960m
Step-by-step explanation:
2 minutes equals to 120 seconds
8*120=960
From the information given, Dairon already had a string that is 4 7/8 inches long.
We first write or simplify 3/8 and 4 7/8 in their decimal fraction forms.
3/8 is written as 0.375 and 4 7/8 is written as 4.875
We can now find out how many pieces he cut from the string (that was 4 7/8 inches), so:
4.875 ÷ 0.375 = 13
So he got 13 pieces of string. He wants 20 pieces, so;
20 -13 = 7
Therefore he will need 7 more strings .
