base is 8 times 8 because in a square all side lengths are the same, and to find the area of a square you multiply 2 sides. the square is the base in this so you use 8 times 8 as the base and you solve for height.
Enter the unknown value that makes this statement true. 35 is *Box* % of 70
2 answers:
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Answer:
x = ± 6
Step-by-step explanation:
Given
x² - 72 = 0 ( add 72 to both sides )
x² = 72 ( take the square root of both sides )
x = ± = ±
= ± 6
Given problem;
Number of quarters in $40;
To solve this problem;
- <u>Convert the dollar value to cents</u>;
100cents = $1
In $40, we would have; 40 x 100 = 4000cents
- 1 quarter = 25 cents
So, divide 4000cents by 25 to obtain the number of quarters in that amount of dollars;
Number of quarters = = 160
So there are 160 quarters in $40