Answer:
b. is incorrect
Step-by-step explanation:
I. Given 8.00 - 2.64
8.00
- 2.64
= 5.36
So 5.36 + 2.64 = 8
Answer:
$80
Step-by-step explanation:
let x be the original price. the discount was 25%, so $60 is 75% of the original cost. we can set up this formula:
=
cross multiply: 6000 = 75x
divide each side by 75: 80 = x
You have a lot of questions here, try breaking them up into multiple posts and you may get more responses.
I will help with some.
<span>(x+3)=0
The solution is just -3.
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3m(m-4)=0
The two solutions are 0 and 4.
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(r-3)(r+2)=0
The two solutions are and 3 and -2.
</span>
I hope this gets you started in the right direction.
Answer:
Step-by-step explanation:
Let's call the numbers "<em>tu</em>", where<em> t</em> is the tens digit and <em>u</em> is the units digit.
We can solve this by the "brute force" method — examining each number to see if it satisfies the conditions.