The minimum wage is increased by 1.7%. It was originally £6.10. How much is the minimum wage now?

Mathematics

1 answer:

Rus_ich [418]3 years ago

7 0

It would be 7.80 , just add 6.10 +1.7 hope this helps

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Solve 0= 2t^3-21t^2+ 40t

sukhopar [10]

$0=2t^3-21^2+40t$
switch sides
$2t^3-21t^2+40t=0$
solve factoring
$t(t-8)(2t-5)=0$
using the zero factor principle
$t=0
$
solve
$t-8=0:t=8$
solve
$2t-5=0:t= \frac{5}{2}$
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4 0

3 years ago

Write an equation that has x=3 as a solution

Damm [24]

Answer:

(3x + 5)/2 = 7

Step-by-step explanation:

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3 years ago

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Help me find Sample variance and standard deviation

AnnZ [28]

First, find the mean. You'll need it to compute the variance.

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The variance of the sample is then computed with the formula

$s^2=\displaystyle\dfrac1{5-1}\sum_{i=1}^5(\bar x-x_i)^2=\dfrac{(21-11)^2+\cdots+(11-11)^2}4=\dfrac{71}2=35.5$

The standard deviation is the square root of the variance, so

$s=\sqrt{35.5}\approx5.958$