Let x be the unknown number.
<span>7x + 668 </span><<span> 2000</span> => 7x plus 668 is less than 2000
where:
7x => x represents the number of cans to be collected in 7 days
668 is the number of cans already collected.
2000 is the target number of cans.
7x + 668 < 2000
- 668 -668
7x < 1332
÷7 ÷7
x < 190.30
or
x < 190
To check:
7x + 668 < 2000
7(190) + 668 < 2000
1330 + 668 < 2000
1998 < 2000
Let n is the unknown number
<span>the product of 23 and an unknown : 23n
</span><span>85 less than the product of 23 and an unknown number: 23n - 85
</span><span>85 less than the product of 23 and an unknown number is 191: 23n - 85 = 191
</span>
answer:
equation: 23n - 85 = 191
2 meters = 200 centimeters
200÷3 = 66 2/3 centimeters for each friend
