I posted this yesterday but no one told me if my answers were correct.
Can someone please check my answers.
1. Solve. –7x + 1 + 8x = x + 1
A) Identity B) No solution C) 1 D) 0
My answer: A) Identity
2.The length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base. If the perimeter is 29 cm, find the length of one of the equal legs.
A) 11 cm B) 12 cm C) 5 cm D) 4 cm
My answer: B) 12cm
3. A home purchased for $300,000 depreciated 8% over a 1-year period. What was the value of the home after at the end of the year?
A) $274,000 B) $278,000 C) $272,000 D) $276,000
My answer: D) $276,000
4. Solve. 8x - 1 - x = 7x + 1
A) No solution B) 0 C) 1 D) Identity
My answer: A) No solution
5.Elaine was charged $195 interest for 1 month on a $1000 credit card balance. What was the monthly interest rate?
A) 20.5% B) 20% C) 19% D) 19.5%
My answer: D) 19.5%
Looks OK!
Thanks
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4 answers