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3 years ago

3) 3,000 is 0.5% of what?

Mathematics

2 answers:

d1i1m1o1n [39]3 years ago

7 0

6,000. Why? Because 0.5 is the same as 1/2, so if we know that 3,000 is 1/2 of something, there should be 1 whole. So, multiplying 3,000 by two, because we’re supposed to have 2 halves (equaling 1 whole), we’d get 6,000. Hope that helped

Anettt [7]3 years ago

3 0

Answer:

Step-by-step explanation: set up a proportion first, .5/100 3000/x, cross multiply and divide. Your answer will be 600000

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Find the sales tax. Then find the total cost of the item. Sales Tax Selling Price Rate of Sales Tax Sales Tax $60.00 8% ? The sa

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Answer: Sales tax is $4.80 and the total cost is $64.80

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We can use this formula: (selling price x sales tax rate)

The sales tax is: $4.80

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3 years ago

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3 years ago

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Convert to radical form (3) 2/3

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Answer:

The radical form of 3 2/3 is

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3 years ago

How many solutions does these equations have? One, infinite or no solutions?

s2008m [1.1K]

Answer:

1. 7(y + 3) = 5y+8: one solution

2. 10 + 6x= 2(5+3x): infinite solutions

3. 3x + 5 - x=2x + 7: no solutions

4. 4x - 4 = 2x + 8: one solution.

Explanation:

1. 7(y+3)=5y+8

a) Distributive property of multiplication over addtion:

7y + 21 = 5y + 8

b) Subtraction property of equalities:

7y - 5y = 8 - 21

c) Combine like terms:

2y = - 13

d) Division property of division:

y = - 13/2

e) Conclusion: the equation has one solution.

2. 10 + 6x = 2(5+3x)

a) Distributive property of multiplication over addition:

10 + 6x = 10 + 6x

b) Subtraction property of equality:

6x - 6x = 10 - 10

c) Simplify (combine like terms)

0 = 0

That is an identity, i.e. that is always true, no matter the value of x.

d) Conclusion: the equation has infinite solutions.

3. 3x + 5 - x = 2x + 7

a) Combine like terms:

2x + 5 = 2x + 7

b) Subtraction property of equalities:

2x - 2x = 7 - 5

c) Combine like terms (simplify)

0 = 2

That is always false, no matter the values of x.

d) Conclusion: the equation does not have any solutions.

4. 4x - 4 = 2x + 8

a) Subtraction property of equality

4x - 2x - 4 = 2x - 2x + 8

b) Combine like terms

2x - 4 = 8

c) Addtiion property of equalities:

2x = 8 + 4

d) Combine like terms (simplify)

2x = 12

e) Division property of equalities:

x = 6

f) Conclusion: the equation has one solution

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4 years ago

3) 3,000 is 0.5% of what?​

3) 3,000 is 0.5% of what?