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2 years ago

Kenneth is 14 years younger than twice Sabrina’s age. Kenneth is 30 years old. How old is Sabrina?

1 answer:

4 0

Answer: I would say 16 because 30-14 is 16 and 16 plus 14 gives you 30. I'm not saying it's right but that's what I would put.

Step-by-step explanation:

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Please solve with explanation

Juliette [100K]

Step-by-step explanation:

$4\frac{9}{20} - 1\frac{2}{6} =\\\frac{89}{20} - \frac{8}{6} = \frac{89 - 26.7}{20} = \frac{62.3}{20} \\$

$4\frac{6}{9} - 3\frac{3}{6} =\\\frac{42}{9} - \frac{21}{6} = \frac{252 - 189}{54} = \frac{63}{54} = 1\frac{9}{54}$

$2\frac{2}{4} - 1\frac{1}{3} =\\\frac{10}{4} - \frac{4}{3} = \frac{30 - 16}{12} = \frac{14}{12} = 1\frac{2}{12}$

8 0

3 years ago

Read 2 more answers

A publisher reports that 54% of their readers own a particular make of car. A marketing executive wants to test the claim that t

dalvyx [7]

Answer and explanation:

Null hypothesis: p is not 54%

Alternative hypothesis : p is equal 54%

First find standard deviation

Standard deviation is:

σ = √[ P ( 1 - P ) / n ] = √[ 0.54×0.46/220 ] =0.033

The z score is calculated p-P/σ = (0.54-0.50)/0.033 = 1.2121

Therefore we can conclude that proportions are not same and fail to reject the null hypothesis

3 0

2 years ago

-16 + the quotient of a<br> number and -4 is -3

alexira [117]

Answer:

Step-by-step explanation:

let the number be x

Then 16 + x/-4 = -3, so

x/-4 = -16-3 = -19 (add -16 on both sides)

x = -4*-19 = 76 (multiply by -4 on both sides)

6 0

2 years ago

By hiring 45 new employees, a department store increased its help by 18% during the Christmas season. How many employees did the

bagirrra123 [75]

Hi!

We can set up a proportion then cross multiply to solve this.

$\frac{45}{x} \frac{18}{100}$

45 x 100 = 4500
4500/18 = 250

The answer is 250

Hope this helps! :)

7 0

3 years ago

How do you find the perimeter of shaded regions?

xxTIMURxx [149]

Answer:

Perimetre of the rencatngel Perimetre of the circle and substrac the.

6 0

2 years ago