Answer:
9 textbooks!
Step-by-step explanation:
Rucksack can hold = 6kg
Mass of textbook = 680g
So, here we need to show the division for finding the number of textbooks it can hold.
680 g in KG's = 0.68
Now, 6/0.68
That is 8.82 ( Round off = 9 textbooks)
Answer:

Step-by-step explanation:
Let the number be x;
The product of 4 and the number will be;

The the square of the number is given as;

Taking the difference of both expressions above;

Factor out the common term:

Hence the difference between the product of 4 and a number and the square of the number is 
Answer:
Step-by-step explanation:
1000
Answer:
x = 11
Step-by-step explanation:
1) A line is equal to 180°. Subtract 70° from the 180°:
180 - 70 =
110
2) To find x set 7x +33 equal to 110:
110 = 7x +33
3) Subtract 33 from both sides:
77 = 7x
4) Divide both sides by 7
x = 11
First multiply 300 by 36 to figure out how much the credit card would be: $10,800. Then multiply 278 by 36 to figure out how much the personal loan is: $10,008. Then subtract $10,008 from $10,800: $10,800-$10,008=$792. She would save $792 :)