Answer:
A. -10.21
Step-by-step explanation:
We know that he bought 3 sets of pencils for $30.63, so assuming each set costs the same amount, we divide 30.63 (the total cost) by 3 (the number of sets purchased) which would give us 10.21. Because we know that this money would have been subtracted from his bank account, then we know that it is a negative number.
Meaning the final answer would be -10.21
Answer:
b = 60
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
b² + 63² = 87²
b² + 3969 = 7569 ( subtract 3969 from both sides )
b² = 3600 ( take the square root of both sides )
b = = 60
I think the answer is $1,033.50, because the total amount she paid, was the cost of the hat plus the sales tax. So, to find the total sales tax you multiply 975 and 0.06 (6% in decimal form) which is $58.50. Then you add $58.50 to $975, which gives you $1,033.50.
--- Hope this helps.
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