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Firdavs [7]
3 years ago
13

In 1945, the federal minimum wage was $0.40/h. In 2015, the federal minimum wage is $7.25/h. What is the percent increase?

Mathematics
1 answer:
natka813 [3]3 years ago
3 0
You need to know the difference in change between .40 and 7.25, which is 6.85, then you divide the change in price by the original amount, so you do 6.85/.40, which is 17.125, then multiply by 100 to get percent and you get 1712.5% increase.
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Factor completely, then place the answer in the proper location on the grid. <br> 6х^2 - 3х - 30
Tems11 [23]

Answer:

3(x + 2)(2x - 5)

Step-by-step explanation:

Given

6x² - 3x - 30 ← factor out 3 from each term

= 3(2x² - x - 10) ← factor the quadratic

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 2 × - 10 = - 20 and sum = - 1

The factors are + 4 and - 5

Use these factors to split the x- term

2x² + 4x - 5x - 10 ( factor the first/second and third/fourth terms )

= 2x(x + 2) - 5(x + 2) ← factor out (x + 2) from each term

= (x + 2)(2x - 5), thus

2x² - x - 10 = (x + 2)(2x - 5) and

6x² - 3x - 30

= 3(x + 2)(2x - 5) ← in factored form

7 0
3 years ago
Simplify 4a+3b-(-2a-3b)
Talja [164]
4a+3b-(-2a-3b)
=4a+3b+2a+3b
=6a+6b
=6(a+b)
8 0
4 years ago
Do you multiply area or add it
pogonyaev
It's the formula. Base times height.
For example: if 50 is the base and 10 is the height, just multiply them both.
50 x 10 = 500. And I don't think you add area-that's for finding the perimeter
5 0
3 years ago
Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workfor
leva [86]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The confidence level interval is  0.016 \le C \le 0.404

Step-by-step explanation:

The sample size is  n =  20

The number planning to increase workforce is  x =  3

 The confidence level is  c  = 98%

The value of proportion for a plus 4 method is

      p = \frac{x+2}{n+4}

substituting values

      p = \frac{3+2}{20+4}

       p =0.21

The z-critical value at confidence level of 98% is

     z_{c}=z_{0.98} =  2.33

This values is obtained from the standard normal table

The confidence level interval can be mathematically represented as

      C =p \ \pm z_{c} * \sqrt{\frac{p(1-p)}{n+4} }

substituting values

      C = 0.21 \pm 2.33 * \sqrt{\frac{0.21(1- 0.21)}{20 +4} }

       C = 0.21 \pm 0.194

=>   0.016 \le C \le 0.404

7 0
3 years ago
The cashier has been directed to sell bread for half off its regular price of $1.98. What is the sale price?
TEA [102]
If the sale is a half off, then the sale price is
1.98  \div 2 = 0.99
3 0
4 years ago
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