<span>Let x=number of nickels in the piggy bank
(2x+3)=number of dimes in the piggy bank
(3x-3)=number of quarters in the piggy bank
.05x+.10(2x+3)+.25(3x-3)=14.55
.05x+.20x+.30+.75x-.75=14.55
</span>
<span>
1.00x=14.55+.45
x=15
2x+3=33
3x-3=42
The number of nickles in the piggy bank would be 15.
</span>
<span><span>The number of dimes in the piggy bank would be 33
</span></span>
<span>The number of quarters in the piggy bank would be 42. </span>
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Answer:
z=-15
Step-by-step explanation:
Multiply both sides by 3:
z=-15
14/25 = 56/100
29/50 = 58/100
53/100
13/20 = 65/100
3/5 = 60/100
order least to greatest:
53/100, 14/25, 29/50, 3/5, 13/20
Answer:
110 yards of string
Step-by-step explanation:
Converting the feet of the string of 1 balloon to yard
1 foot = 1/3 yard
6 feet = x
x = 6 × 1/3 yard
x = 2 yard
Hence 1 balloon uses 2 yard of string
Since:
1 balloon = 2 yard of string
55 ballons = x
x = 55 × 2 yard of string
x = 110 yards of string
Hence, for 55 balloons he would need 110 yards of string.
Rearrange the like terms first.
1. 4x+3x+9=30
add the like terms
2. 7x+9=30
move the 9 to the other side.
3. 7x=30-9
subtract them
4. 7x=21
divide bothers sides by 7
5.
which it will end with the result of
x=3
