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Valentin [98]
2 years ago
9

At your hardware store, you buy hammers for a $30.00 a dozen and sell them for $3.50 each. What is the percent markup for the ha

mmers? *
Mathematics
1 answer:
kvasek [131]2 years ago
7 0
I believe it’s 1.4%. 3.5/2.5=1.4
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In which of these situations do the quantities combine to make 0?
leva [86]

Answer:

b is the correct answer

4 0
3 years ago
Expand and reduce (2+√3)^2
nasty-shy [4]

Answer:

7 + 4\sqrt{3}

Step-by-step explanation:

note that \sqrt{a} × \sqrt{a} = a

Given

(2 + \sqrt{3} )² = (2 + \sqrt{3} )(2 + \sqrt{3} )

Each term in the second factor is multiplied by each term in the first factor, that is

2(2 + \sqrt{3} ) + \sqrt{3}(2 + \sqrt{3} ) ← distribute both parenthesis

= 4 + 2\sqrt{3} + 2\sqrt{3} + 3 ← collect like terms

= 7 + 4\sqrt{3}

6 0
3 years ago
Lucas is solving this problem.
kumpel [21]
I think it's d... ok?
3 0
3 years ago
Can anyone explain how to expand and simplify 3(2a+5) +5 (a-2)
Step2247 [10]
Take the first bracket and it's multiplication, 3(2a+5)
You expand my multiplying everything inside the bracket by the number outside.
3*2a = 6a
3*5 = 15
Then multiply out the second bracket, 5(a-2)
5*a = 5a
5*-2 = -10
So now you have 6a + 15 + 5a - 10
Simplify it by collecting like terms, and you have:
11a + 5
And that's the answer, hope I helped!
5 0
3 years ago
Read 2 more answers
S.O.S I desperately need math help
rjkz [21]
I'm pretty sure that your answer is the Distributive Property, if I were you, I'd check your notes if you have notes or anything, and THEN, search it up. Just to make sure. I'm not always a hundred percent sure of my answer, but, I *THINK* it's the distributive property.
7 0
3 years ago
Read 2 more answers
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