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4 years ago

1+3+5......+99 Si rezolvarea va rog fiindca nu inteleg !!

Mathematics

1 answer:

levacccp [35]4 years ago

4 0

I hope this helps you

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How do you solve this problem? 2|x-3|-5=7

Leona [35]

Ask a teacher or look it up or use a text book

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4 years ago

Solve for z.<br> 25z = 175

LUCKY_DIMON [66]

Answer: z = 7

Step-by-step explanation:

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3 years ago

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Mary month earnings can be given as R(x)=13x+155 where x equals the number of hours worked josies monthly are given as Q(x)=9x+3

tatuchka [14]

Answer:

45hours

Step-by-step explanation:

Given

Mary month earnings to be R(x)=13x+155

Josies monthly earning is given as Q(x)=9x+335

If Josie and Mary work to earn the same salary, then R(x) = Q(x)

13x+155 = 9x+335

subtract 155 from both sides

13x+155-155 = 9x+335-155

13x = 9x+180

subtract 9x from both sides

13x-9x = 9x+180-9x

4x = 180

x = 180/4

x = 45

Since x equals the number of hours worked by Josie and Mary, this means that Josie and Mary must work for 45hours to earn the same salary

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3 years ago

Exhibit 10-7 In order to estimate the difference between the average hourly wages of employees of two branches of a department s

Leokris [45]

Answer:

$E(x)=1$

Step-by-step explanation:

From the question we are told that:

Sample mean 1 $\=x_1=$9$

Sample mean 1 $\=x_2=$8$

Sample standard deviation 1 $\sigma_1 = $2$

Sample standard deviation 1 $\sigma_2 = $1$

Generally the equation for Point estimate is mathematically given by

$E(x)=\=x_1-\=x_2$

$E(x)=9-8$

$E(x)=1$

8 0

3 years ago

72 divided by X equals X

GREYUIT [131]

Answer:72 divided by 9 equals 8

Step-by-step explanation:9 x 8=72

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3 years ago

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